generally i would say its easier to learn stuff on boxes, but if you can 270 onto rail good i would say that its easier to scissor on rails to spin off.
i've already replied to a couple of these threads, but third time's a charm.
so: sw 5,7,9 with grabs
cork7,9 with grabs
rightside 3,5 with grabs
flips
rodeo 5 (maby 7)
pretzles and other rail shenanegins