Replying to Help for Bio 9

I have been trying to stick a bio 9 fior two days but I have a hard time getting back into axis. On bio 7s I dont have this problem. for 7 I tuck harder at about 540 so i get back on axis but on 9s it seems to get me more into bio. I dont know when to tuck to bring it back for the 9. Important factor though.... I ski in quebec so The biggest available jump for me is 35 feet. I over shoot it to get more time but thats not very safe, and super sketchy but what ever. please help turpin