Replying to Straight Spins?

ok i have pretty unusual problem. i cant spin straight spins. i really have this problem on big jumps, because the lip of the jumps automatically makes me cork. i always cork my spins and if i try to spin normally i just land on my side. normally it wouldnt bother me because: cork = more $teeze, but corks make landing switch more difficul and i always land *almost* on my face. 3's and 7's are easy, but 5's arent really that comfortable, so im afraid to do 9's. same goes for switch. 5's are easy, but i sometimes land on my side when im doing switch 1's, because im kinda automatically corking. has anyone had this problem? ive tried to ''bio'' my spins, but it doesnt really work.