Agree hes a bad MU
(Near) Unanimously agreed upon bad matchups:
Kung Lao
Cassie Cage
Predator (HQT in particular)
Not played a really good HQT yet but I can see it being bad I never listed it due to lack of MU exp.
Matchups other people think are bad but I think are Ok:
GM Sub
Mileena (Not sure if anybody thinks this is a bad MU anymore?)
Kotal Khan
Kano
Disagree with GM think he overall does better in neutral/corner than we do better against him in neutral/corner. 4-6
Mileena I think we win that MU from playing GabStandard. 6-4
Kotal I think we win 5.5 across all variants
Kano I think is even.
Matchups that I think are bad that others don't seem to mind:
Liu Kang
Johnny Cage
I can see it with Liu (Don't ask them though they will tell you Jax wins 6-4 and that once Jax lands a jab on block the round is over) Liu outzones us and we have to deal with the RC nonsense, Flamefist lets him armor reversal pressure and potentially make it safe based on read, gives him a wakeup and he still keeps the zoning adv. Potential 5.5
JC in A-list gives Jax a hard time in the fireball game and can compete in footsies and while his pokes are slow his pressure is great, he only starts to loose advantage when he is on the back foot. Stunt double does the same in different ways. I have this as a potential 5.5
Matchups I think should be discussed (many of these are probably not bad MU's, but these characters have tools that mess with some of what Jax does from time to time). A.K.A. the on the fence MU's.
Sonya
Ferra Torr
Tanya
Sonya the online princess is a tricky one given that she has a punishable 50/50 and so do we although she capitalizes more depending on which variation of Jax/Sonya (Gap in Jax's low string/CO Parry) Zoning in anyway is risky given that the Sonya can just do a divekick around most of it if they feel like it so you kinda have to play it slow and let her press a lot of buttons and make your way forward in the neutral. I do need to play a good Drone and Grenade Sonya however to get an idea of those MU's as I think they'll do better than CO.
F/T can't really talk about
Tanya I feel we do ok in PU due to the 7 frame EX GG stopping her from staggering rekkas without risk, and it doubles as a nice AA. She has the advantage full screen however I think we take less risk getting out of her pressure than she does getting out of ours. Still would like more exp before I give a number though.