don't throw yourself really really hard. for a while, i was tossing myself way too hard for 270s, and i'd just spin on the rail or the box. try them onto low boxes at first, and work your way from there. when you first land one, use the adrenaline you get to take it to a bigger feature.
"America is all about speed. Hot, Nasty, Badass speed."
-Elanor Roosevelt, 1936