As my trick skills evolve I find that tricks that once made up my bag of tricks I don't even ever do anymore. I've recently been revisiting some and found i can't even hit several of them others are just weak. So many tricks, so little time.
Here's a few:
Flic Flac to 540 - tried it missed it horribly again and again. I really unlearned this one.
Yo-Yo - Yeah I roll up all the time but not from nose up like I first learned. I can still do this but it was automatic and I had to think about it recently. I just don't do it.
Left handed 540's - They suck.
Helicopter - I never ever do this anymore.
There are many others but these are tricks I used to do all the time.