In my opinion the stock punch is too high. Air control is much easier with less punch. Also no pin breakage anymore. 6s with less punch is much more fun than 4s
Fazon, punch on 5, break strength still on 2. Running heavy Big Joe 40 tires. I'm running grass and obviously it's very low traction, because I have not broken anything YET.
I decided to try the punch on 5 after getting used to the factory 2 setting. But didn't want to front flip incase I panicked and had to stab the break. So after running a few batteries, I'm pretty happy with these settings.