BNBs that I use:
B21, B21, B11~trance, JIP, B31+2 uppercut 38% I believe, 43% with JIP
B31+2, B21, B11~trance, JIP B31+2 uppercut 37%, 41(?) with JIP
F12~trance, B21, B21, Uppercut believe this is around 35%
B11~trance, B21, B21, Uppercut 35% I believe
112~trance, B21, B21, Uppercut 35% as well I think
How to incorporate the runetrap:
In any of his bnbs, upon the trance, you get a guaranteed 11~skydrop (DO NOT DASH) 212 EX rune. A lot of people will jump back following the first runetrap, 2~trance will get you a 35% combo or put them back in the same situation. You want to frighten them to stop doing that. You can only get one guaranteed 212~EX rune setup off a 11~skydrop.
JIP trade:
Use F1~trance, F12~trance is not as reliable and leads to the same amount of damage.
AA/Anti-Cross Up:
D1~trance or uppercut is the most reliable. Standing 1 into 112~trance will also work given the proper distance.
21U3 and U3:
21U3 and U3 will occasionally work, but only with those who're very unfamiliar with QC, the U3 is very punishable in both instances.
Correct usage of skydrop:
Skydrop will drop you onto your opponent with some of the slower projectiles in the game, IE Reptile's FB/SZ's ice ball.
DO NOT USE it against fast recovery projectiles such as Sonya's pew pew. It's extremely punishable and EX Skydrop is essentially useless outside of overly aggressive players. It's a bad use of meter but sometimes effective.
Obstacles against players who know Quan:
This is where the challenge begins, your 'mixups' will be blocked. B31+2 is relatively safe on block and you can get a EX rune out of it, F12 1+2 is somewhere between -3 or safe on block. Use your meter sparingly, meter is is the difference between winning and losing with Quan, he's that reliant on it. Patience and capitalization is Quan's strength.
Summary:
Quan isn't a bad character, but he requires a different approach to do well with. He has a great comeback factor but is very gimmicky and he's slow. He has a difficult time being pressured and has a lot of problems in the corner. He's very rewarding to play though. I suggest watching Dink's and Soup's footage as you'll pick up a lot from them.
Spletty91 I'm by no means the best Quan out there, but I'm on PSN. Gimme an add! I've got a mic as well. It'd be nice to help someone for a change!