Pretty reasonable MU chart I must say, good job. From my experience I'll chime in on a few. Assuming this is all A-List:My opinion on A-List MUs
Vs Tanya Kobu 4-6, maybe 3-7
Vs Kotal Sun God 6-4/ War God 6-4/ Blood God ?
Vs Erron Black 5-5 all variations
Vs Kitana Royal Storm 5-5
Vs Mileena 5-5
Vs Tremor 6-4
Vs Sub Zero GM 3-7/ Cryomancer 5-5
Vs Scorpion 6-4
Vs Cassie 4-6, might be worse
Vs Reptile 5-5
Vs Kano 5-5
Vs Liu Kang Dualist = 5-5/ Flame Fist 4-6/ Dragon Fire 3-7
Vs F/T Ruthless 5-5, don't know about the others
Vs Ermac Mystic 6-4/ Master of Souls 5-5, maybe 4-6
Vs Raiden Thundergod, Teleporter 5-5
Vs Takeda Shiray Ryu 6-4
Vs Quan Chi 5-5
Vs Jax 5-5
Vs Shinnok Impostor 5-5/ Boneshaper 4-6/ Necromancer 5-5
Vs Kung Lao Tempest 4-6/ Buzzsaw 3-7
Vs Predator Hunter 6-4/ Hish Qu Ten 4-6
Vs Jacquie Full auto 5-5, don't know about the rest
Vs Goro 6-4
Vs Jason 6-4
Vs Sonya Covert Ops 5-5, not sure about the other variations
Vs Dvorah 4-6
Vs Kenshi 5-5
Vs Kung Jin 5-5
LK dragon's Fire - 3-7 seems a bit harsh, I don't know if I can agree with that until I experience it first hand lol, I need experience against top level DF because I don't see it being a 3-7 in theory.
Buzzsaw lao - I personally think this is not a bad match. 5-5 probably, idk exactly. Buzzsaw damage is so low and the zoning is upplayed. The damage from the hats it's really low. Sure it controls space but if you trade with FB your projectile does more damage and causes a longer hit stun on trade. I have experience in this match and don't think it seems bad in theory or experience.
Jason - I think JC beats relentless 7-3, slasher 6-4. Not totally sure about unstoppable but many of the same tools as relentless so likely 7-3.
Tremor - I have a lot of experience vs all of tremor variations, my opinion at the moment is crystalline 5-5, aftershock 4-6, metallic 6-4. If you have any tips/experience that makes you think he beats aftershock and crystalline, let me know
GM Sub zero does indeed seem like a horrible match. Not sure yet if I think it's 3-7 but yeah I'd say it's his worst MU for sure.