Snowboarding question. i can do backside 360s pretty well. but i have trouble with my balance doing ...?

...doing frontside 180s and can't even pull off a frontside 360. my balance seems to shift back too far to my heel edge as i'm taking off and tends to make me land on my . frontside rotations are supposed to be easier than backside(rotating blind to the landing). got any ideas. be more specific than "shift your balance forward". i've tried and i still bail. been boarding for 8 years, i'm pretty good at most stuff, but i can't seem to get this down.