Ok I did it, He has legit mix off his Trap Setups, one touch can end up in a 100% sequence from a couple wrong guesses.
Quan Jax gives crazy Throw setups using the Unblockable move, so you can do the overhead sky drop right after the Unblockable hits and it guarantees at least 20% damage off back throw, it beats Wakeup Jump, Backdash, Armor and if they Armor you get 25% meterless and most of all because of the sky drop it loops:
Here's the Jax Trap setup which can be done meterless but I like the extra time to get portal buff out if they are conditioned to block instantly and not jump, Quan has anti airs anyways, so 30% into trap setup with minimum of 20% throw setup or 30% trap setup into 45% combo with Jax, it's a legit 50/50 throw/low mixup:
Basically any touch even his S4 poke half screen into EX Sky Skull or anything into Jax can setup these forced Traps.
Let's say you miss the trap setup, your +9 on block from meterless trap that guarantees 12/13 jailed.
Now let's say you mistime the back throw into Jax Unblockable into BF4 overhead drop kick, the worst that happens if you spend meter is a few characters can armor out like Sub Zero slide but it puts Sub full screen where Quan can start the zoning again and has time to get portal buff out on his recovery.
With that portal buff out you can do BF1 a high mid mid that +18 on block into DB1 a triple diagonal mid that covers most of the screen and is +9 on block making them hold another projectile and you can mix it up between regular straight skull a triple Purple Skulls or EX BF1 which ears all projectiles and teleports them for combo which allows another Trap setup with Jax
My overall opinion of Quan right now based on what we know currently is that he's strong and dirty in certain areas like fullscreen and setplay. He struggles up close but does have several tools to stop a characters approach and his overhead drop is a very good armor escape tool into mix.
I wish his D1 was 7f and -8 on block