So I was practicing backside 3s today and I am very close to completing the full rotation but my main problem is I seem to be leaned back to far when I'm coming around instead of being centered over my board or level like you would be doing a straight air. Any tips on balancing myself out? Would going for a grab mid rotation help or should I be starting with frontside 3s instead. Hopefully you guys can picture what I'm doing by what I said. I'm landing to far leaned back and falling on my ass lol.
Basically it could be one of 2 main issues here:
1) Your pop might be off
Pop (pushing off both legs evenly as you ride up and off the take-off of a jump) is what sets you up for stable air. If you don't pop evenly and balanced, your air won't be even or balanced. A common mistake with this is popping back foot heavy instead of staying more evenly weighted as you pop upwards.
2) Your spin might be off-axis
Another thing that could be going wrong is you could be dropping your shoulder and initiating that backside spin into a corked spin (off-axis rotation) by accident.
You want to keep your shoulders parallel to your board and not dib them down when you initiate that backside spin off the jump.
Apart from these 2 problems, it's also possible it could be your rotation isn't being set up properly and you're twisting/waving your arms in a certain way that throws you off balance in the air and makes it hard to land, I've seen this happen a few times with people learning 360s.
Honestly though, we need video to properly analyse this, otherwise we're just guessing. There are a lot of things that could be causing you to not rotate properly in the air, video is the only way we can really know what's going on without seeing it in person.
Also as far as spinning goes, there's no reason you need to learn front 360s before backside. Either is fine to learn first (assuming you have your 180s mastered).