Just go for the spin - set, initiate and look the whole way around. Keep your shoulders tight and in-line. As far as grabs go, i prefer mutes most of the time for plain spins. That, or tails. Any grab, bring the skis to you so that you don't go off balance going for the grab.
ok so just practice your 3s and 1s as much as you can. like at least 5 runs worth of just doing them on all kinds of jumps. get comfortable with that and just spin a bit more on your 3. you will be able to spot the landing and ride away just like a 1 for your 5. the more practice you have with the 3s and 1s the more comfortable youll be throughout. and once you land it nicely obviously practice them and they will get better. i would suggest doing everything on jumps bigger than 30 feet or not baby park jumps to make them look cooler and not like your a hellicopter idiot trying to spin a lot on a 20 footer
This + practice doing fat 180's on the jump you plan on 540ing first to get a feel for landing switch
my favorite is this double faulted lift line in telluride that i love to hit with no poles. all the local mr. never skip a day in 10 seasons gettin ready to hate on this steezy playa wit no poles and a jacket that is too large.... then BAM. i rip the shit outa it handdragin dem moguls and hittin all the side cliffs out gunnin them old farts. --runningman$