i learnt on trap and got really comfortable with 7's 9's an 10's then i took 7's to snow and they were quite inverted
on my 7's i fixed my takeoff by being more patient and popping more
once you get the right axis in the air and come around to a good 4 point landing they because so fun and easy and almost all the fear is taken away
as soon as you test speed and do a 3 on a new jump your ready to cork 7 its also a matter of judging how fast you spin and a helpful tip is to spin a little faster and shifty out the end and spot your landing then come down and stop
by dropping your should i interoperate it to be when your spinning lets say right for example and you dip your right shoulder down to set the cork and off axis rotation. with cork 7's is should be a lot more gradual that other tricks like cork 5's and underflips
so spark notes. yes once you get them to your foot consistently a few times they become easy and very very fun