RE: J3 cub, crash on take off nearly every time.
Johnnie Red,
1. Left side more than right for sure. I had to fight it by giving it alot of right input, then it would snap.
2. No considerable change occured during throttle adjustments.
3. No, I never had a chance to because it liked the ground better!
4. It did not seem to matter.
5. Whatever thrust angle was built into the firewall. He did not add any more. (that's interesting however).
I hope this helps, I appologize for not having the exact answers you may be looking for. I had all of my attention on the task of trying to land and not realy on conditions etc.