Replying to I need 360 help...

I ski in New York, so not much vertical. After a while, my buddy and I got bored of the same short hills, so we hit the park (of course after investing in $200 googles to look cool ;)). We are teaching ourselves moves to impress the ladies (why else?) and we recently got to hitting 360's. I can land them, but I always land with my feet apart, off balance. I can't figure out why this is. I thought it was because I was I was starting my rotation before I left the jump (a moderately sized 10' ramp), but nothing changed. Thoughts or suggestions?