Holy shit, had a major breakthough with kickflips recently. Being a former mob-4-life flicker, I could always do them and land them halfway decently, but never enough to reach into the "satisfactory" territory. I've tried working away the mob motion I've got used to over the past 1-2 years and would always have trouble still. Basically the problem was the pop. I'd spent so much time focusing on flick (which is better now) but couldn't ever get it to feel right. Pretty much, I started messing with my back foot and alls I did was stood on my toes/ball of the foot more (with my heel raised), and all the sudden I started getting that right pop and the spin/catch just starting coming along so much easier all the sudden. It's surprising how the smallest change can do the trick sometimes.