^ Also if you have solid backside ollies on flatground (of the late kind; ollie then turn), then cabs also become super easy on flat if you just think of breaking down the rotation in quarters of a turn, mentally. Imagine riding fakie, essentially already kickturning 90 degrees ('ahead of yourself slightly' as givecigs said) into a backside ollie (that you pop and jump with) and then you should be 90 degrees short of landing which you can compensate for similarly to however you usually minimize the occasional underrotation on backside ollies on flat. In general, flatground tricks become stupid easy once the logic clicks that it's basically all translations.
Last trick I learned was switch f/s nosegrind f/s shove on a park box, I've done sw nosegrind reverts the easy way forever but I would like to get proper switch nosegrinds that grind and pop out straight. Shove out is the first step, feels good to do but a bit too much like a five-o shove perhaps (and the similarities have to be why sw nosegrind shove is so attainable).