My brother plays a meeeean Gen, so I get a fair amount of practise against him, and some other Gen’s of good skill (even played asiantom from his account)
The thing to remember is against Gen, being a full screen away or maybe 5/6 of the screen is NOT a bad thing at all. You want to give yourself extra time for his jump ins and focus dash forwards. My technique against gen is:
-use S. forward ALOT, mix it up with fake limbs (jabs/shorts)
-ensure you use the fb at long ranges or he will jump you and kick your butt!
-If he uses wall jump consistently, then you get a free win. Simply time your IAT for when he’s about to hit you and whack him with a very meaty combo. Or you can jump back fierce and wait for the jump in/wall jump and again, just teleport out of harms way and give him your best shot.
-Be aware that Gen’s Gekiro IS good on wakeup- and will beat out nearly everything Sim has at close range, bar a throw or EX/super. So if you are going to cross him up on wake up then ensure your fireball is hitting him first, or the Gekiro will nail you on teleport.
-If things are getting cramped, and he’s jumping in on you- use light slide-> throw/b.forward -> YF xx super to teach him not to do that!
It is vitally important you keep your distance in this match. To me, it feels very much like the Bison match- keep him at range and dont panic if he headstomps/DR’s in on you. The matchup is a definate 5/5, and is one of the best examlples of a 5/5 out there.
Besides…you gotta have respect for any Gen’s out there…not an easy character to play, so they get what they deserve when they pull off a painful combo.