Since these particulars are frequent sources of (incorrect) objection, please read the following threads:
Using the Stereo tag on stereo releases
Identifying Pressing Plant in FTF when multiple pressings w/ same Cat# exist
Changing the way Variants is established is incorrect per current guidance from https://www.discogs.com/forum/thread/392356?page=10#7663762

I add "XXX Pressing" in the FTF when there are several manufacturers for U.S. releases with the same catalog number. When possible, I use acronyms. Some acronyms are used by the manufacturer themselves on the release. These company's profiles are occasionally spelled out (not the acronym) on Discogs, such as:
AD/CA = Americ Disc
ADFL = Americ Disc, Florida
AGMW = AudioGraphic Masterworks
ARC = Allied Record Company
CI/CA = Cinram, Commerce, CA
CMCA = AKA Cinram, Anaheim, CA
CRT = CRT, Custom Products, Inc.
DADC
DADR = Disque Americ
DMI = Disc Manufacturing, Inc.
DTI = Disctronics Texas, Inc.
EDC = EDC, USA
EMI = EMI MFG.
HMG = HMG (2)
JVC
MUMS = Matsushita Universal Media Services
OEM = Optical Experts Manufacturing
PDO = PDO, USA
PMDC = PMDC, USA
SRC = Specialty Records Corporation
UML
UNI = UNI (8)
UT/TX = U-Tech Dallas
However, when the first three letters of a plant/manufacturer does not distinguish it from another manufacturer and/or plant, I have started using the following acronyms:
ADSB = Arvato Digital Services Bertelsmann, USA (to not confuse with Arvato, USA)
ADT = Allied DT (to not confuse with Allied Record Company)
CMO = Cinram, Olyphant, PA
CMR = Cinram, Richmond, IN
CMU = Cinram USA
DDI = Denon Digital Industries
DMA = Disc Manufacturing, Inc., Anaheim
DMH = Disc Manufacturing, Inc., Huntsville
DSI = Discovery Systems
DTA = Disctronics A
DTG = Disctronics Group, United States
DTH = Disctronics H
DTU = Disctronics USA
JCA = JVC CA
JDA = JVC Disc America
LVI = Laservideo Inc.
SPA = Sonopress Arvato, USA
SPU = Sonopress USA
TND = Technidisc
TUMS = Technicolor Universal Media Services
UTC = U-Tech California
WMC = WEA Mfg. Commerce
WMO = WEA Mfg. Olyphant

Non-acronym FTF identifiers:
Arvato = Arvato, USA
Capitol Jax
JAX = EMI Jax
Pitman = DADC, Pitman
Sony DADC

Some plants I have not yet come up with a satisfactory acronym for:
DiscUSA - DUS maybe?

Discussions on CD plant identification:
CMCA is Cinram, Anaheim, CA?: https://www.discogs.com/forum/thread/848077
Technicolor, Olyphant, PA?: https://www.discogs.com/forum/thread/833273
Whyn Communication, Inc. https://www.discogs.com/forum/thread/823687

Misc CD plant discussions:
Post-DMI Cinram Anaheim and Huntsville: https://www.discogs.com/forum/thread/850834
EDC pressings with UML moulds: https://www.discogs.com/forum/thread/812759
PMDC-UML: https://www.discogs.com/forum/thread/814090
Sonopress USA: https://www.discogs.com/forum/thread/827516
WEA Olyphant vs WEA Commerce: https://www.discogs.com/forum/thread/824863
Technidisc https://www.discogs.com/forum/thread/820394

Record Club discussions:
BMG Direct and BMG Direct Marketing, Inc.: https://www.discogs.com/forum/thread/818322
BMG no BC vs w/ BC: https://www.discogs.com/forum/thread/818317

Misc helpful stuff:
DADC "Crosshatch" symbol: 🝊 🝊🝊 🝊🝊🝊🝊🝊🝊🝊🝊
Misc symbols: 🞢 ● ♦ β˜… β—† β„—Β©

About me

Local Interest: https://www.discogs.com/lists/Texas-Independent-and-Self-Releases/563589

Currently mentoring: <no one> :(

Current Discogs database update projects and interests:
1) https://www.discogs.com/lists/EDC-Pressing-UML-mould-oddities/567039
2) Direct Marketing Music Clubs (https://www.discogs.com/group/10386)
3) Release page improvements (just a place to jot ideas at the moment - nothing serious) https://www.discogs.com/forum/thread/809417

Achieved has "β˜…"
Currently working on has "β–Ί"
Not currently working on has "β—„"

Collection in Discogs (updated 2021-02-27):
β–Ί Add all CDs (confirmed) in collection: 1155 of 2122
β–Ί CDs in collection needing manufacturer identified: 89
β–Ί Add boxes of vinyl: 31V1, 31V4, 31V6
β—„ Submit vinyl not on Discogs: 13
β—„ Vinyl listed for sale: Pending - will be listed for sale once all are added/submitted.
β–Ί Add CD want list from Amazon to Discogs: Incomplete

Discogs Milestones:
Currently top contributor #2,200 (on 2021-02-27)
β˜… Reached ranked contributor status on: 2020-06-02.
β˜… Reached top 4,000: Achieved on 2020-07-26
β˜… Reached top 3,000: Achieved on 2020-12-04
β–Ί Reached top 2,000: Pending
β—„ Reached top 1,000: Pending
β—„ Reached top 500: Pending
β—„ Reached top 100: Pending
β—„ Reached top 50: Pending

β˜… Rank Points (5,000): Achieved on 2020-07-26
β–Ί Rank Points (10,000): Pending
β—„ Rank Points (15,000): Pending
β—„ Rank Points (20,000): Pending
β—„ Rank Points (25,000): Pending

β˜… Submissions (200): Achieved on 2020-05-30 with God Lives Underwater - God Lives Underwater.
β˜… Submissions (250): Achieved on 2020-07-01 with Toy Subs - Vim Fuego.
β˜… Submissions (300): Achieved on 2020-08-31 with Dexter Freebish - Another World
β˜… Submissions (400): Achieved on 2020-12-16 with Christopher Franke - Babylon 5: Z'Ha'Dum
β˜… Submissions (500): Achieved on 2021-02-27 with Cool For August - Grand World
β–Ί Submissions (600): Pending
β—„ Submissions (700): Pending
β—„ Submissions (800): Pending
β—„ Submissions (900): Pending
β—„ Submissions (1,000): Pending
β—„ Submissions (1,250): Pending
β—„ Submissions (1,500): Pending
β—„ Submissions (1,750): Pending
β—„ Submissions (2,000): Pending

β˜… Seller positives (25): Achieved on 2020-06-08
β˜… Seller positives (50): Achieved on 2020-12-03
β–Ί Seller positives (100): Pending
β—„ Seller positives (150): Pending
β—„ Seller positives (200): Pending
Recent Activity
submitted Laura Fuentes - Sobrevida. about 14 hours ago
submitted Jack Ingram - Electric: Extra Volts. about 17 hours ago
submitted Ashley Hamner - Trapped Beneath The Stars. 3 days ago
submitted ThΓΌringer Salonquintett - Serenade D'amour ● CafΓ©haus-Musik. 3 days ago
added Jars Of Clay - Much Afraid to their collection. 4 days ago
added Janet* - The Velvet Rope to their collection. 4 days ago
submitted Open Chapter - Falling To Be Held. 4 days ago
submitted Mur (6) - Mur. 4 days ago
submitted Il Sorenti - Italian Love Songs. 4 days ago
submitted Various - Unmistakable Ride. 4 days ago
added GusGus - Polydistortion to their collection. 5 days ago
added Gravity Kills - Manipulated to their collection. 5 days ago
submitted Feeder - Polythene. 5 days ago
added Mighty Joe Plum - The Happiest Dogs to their collection. 6 days ago
added Hum (2) - Downward Is Heavenward to their collection. 6 days ago
added Forest For The Trees - Forest For The Trees to their collection. 7 days ago
added Foo Fighters - The Colour And The Shape to their collection. 7 days ago
added Fat (3) - Fat to their collection. 7 days ago
added Econoline Crush - The Devil You Know to their collection. 7 days ago
submitted Diamond Rio - Greatest Hits. 8 days ago
submitted Cool For August - Grand World. 9 days ago
submitted Unknown Artist - Rain Forest. 10 days ago
submitted Various - Let's Do Italian. 10 days ago
submitted Various - Best Of Celtic. 11 days ago
added Delerium - Karma to their collection. 11 days ago
added Deftones - Around The Fur to their collection. 11 days ago
added Death In Vegas - Dead Elvis to their collection. 11 days ago
added The Dandy Warhols - ...The Dandy Warhols Come Down to their collection. 11 days ago
added Creed (3) - My Own Prison to their collection. 11 days ago
added Cold (4) - Cold to their collection. 11 days ago
added Lauren Christy - Breed to their collection. 11 days ago
submitted Joel Sayles - An Evening In Vienna. 12 days ago
submitted Various - Alloy.com Summer Sistas. 16 days ago
submitted Doug Montgomery - Doug Sings! An Evening With Doug Montgomery. 16 days ago
submitted Amauta (6) - HAC. 16 days ago
submitted Yang Ying - Elixir. 16 days ago
submitted Swami Jnaneshvara Bharati* - Yoga Nidra Meditation: Extreme Relaxation Of Conscious Deep Sleep. 16 days ago
submitted Green Turtle Cay - Green Turtle Cay. 17 days ago
submitted Various - Mozart: Wind And String Concerti / Symphonies. 17 days ago
submitted Various - Mozart: Sacred Music / Serenades & Divertimenti. 17 days ago
submitted Giovanni* - Broadway Romance. 17 days ago
submitted Daniel Makins - Peanut Butter... (And Other Things I Know). 17 days ago
submitted Con Hunley - The First Time From Studio B. 17 days ago
submitted Charlie Boy (8) - Da' Fearless Weirdo. 17 days ago
submitted Arlington Jones - Solo Sessions: Peace That Passes All Understanding. 17 days ago
submitted Dead Crickets - Crazy For My Baby. 17 days ago
submitted The Chris Phillips Project - Cardiomix. 18 days ago
submitted Carolynn Black & The Blues - Let It Go. 18 days ago
submitted Barnes ● Leslie ● Jimmy - It IS Brain Surgery Volumes 1 & 2. 19 days ago
submitted Unknown Artist - True Relax-Zen. 20 days ago