Wow... Where to start...
I can't do any heelflips whatsoever; regular, nollie, fakie, or switch. I've got decent varial heels and fakie varial heels though, but that's it for the heelflip department.
Switch flips and nollie flips. I think I've only landed two or three switch flips ever.
Switch front pops, can't do those too good at all either
I didn't know how to do regular pop shuv-its for the longest time either; I never bothered to learn em when I was starting out and whenever I'd try them they'd always go primo, I know how to do em now though but for the longest time I couldn't do em.