Basically I don't go toe to toe with Grundy much. Bane's dash's are awesome. Most Grundy's I see will try to WC or do a string into trait often. I will admit WC cancel can be tough but if they aren't hip to it the match is that much easier. So it's a matter of nailing the spacing off blocking the string so he misses trait against your back dash, or back dash the WC at the right time and go into full combo. I've also had success off a well timed nuetral jd3 against WC, creates a cross up behind him. If they try to low poke it will usually be low poke into trait or string to trait, don't try to trade blows. Same thing on his wake ups, basically bait those in the same mannor, you will lose many stuff attempts unless you're on lvl 3 or get the timing just right on what you said. If he's trying to swamp hands a lot all you need is lvl 1 venom to beat it or a simple jump or well timed dash. It's about spacing him to beat his armor and Bane has great range on many of his attacks. If I lose to Grundy it's because I messed up or they are flat out better.
This might be a good gameplan, but all you are saying is about anticipating your opponent move and guessing right.
Every character in the game can neutral jump WC, use crossups against it, or space Grundy right...and Grundy is not going to use Swamp hands a lot since is obvious that you can use venom on reaction and beat it.
Grundy will stay on your face and the damage he deals is usually superior to yours, his corner game is superior too.
You can use LVL 3 Venom to beat his WC/WCC during pressure but that will be a big risk, because if Grundy manages to catch you during the debuff you are dead in one combo.
Its not random. Your timing is off. A slightly delayed b1 into double punch stuffs all of Grundy's wake ups. Worst case you trade armor vs WC and Bane recovers faster.
I never said anything about using WC/WCC on wake up, I was talking about a normal WC/WCC throwed out during some string or to anticipate Bane. It's not practical to have the perfect timing for b1doublepunch to stuff a random WC, you can't time it properly.
On wakeup I still have Cleaver-MBCleaver that is fully invincible you can't stuff it.