I still have a 16 year old GP decathlon......Now it needs repair....cartwheel on take off.

I can tell you a few things I did wrong.....

1. Had to much elevator input........no dual rates.
2. Wing wash out was the wrong way.
3. Not getting get a good long roll out before pulling back on the stick.

The plane yawed and stalled..........

If it is balanced both ways, throtle up let the tail lift and the plane should do the rest. I find the hardest part is keeping it strait down the run way......(needs wheel toe in) Because the (fus.) is so short take offs can get hairy....give it gentle up elevator.

Hope this helps.