^^^^ your dumb backflip 7's are much harder then cork 10's. try like cork 12 or 14 I can do up to a backflip 5 and when your in the air there are a million different forces pulling you every direction and you cant see your landing for shit corks you jump and throw them hard and just spin fast. you never see people post vids of them doin even backflip 3's. back flip 3's are as hard as cork 9's backflip 5's are as hard as cork 10's or harder.