Ok, this will be interesting:
So before I went to solder without thinking, I looked at the ESC settings once again. The only thing I didn’t dig myself into was motor timing.
I googled it once, but I only found out that it doesn’t have much effect on acceleration.
Instead of using google, I used the forum. After a few threads, I found this one:
So in that thread @Namasaki suggested not to lower, but to HIGHER acceleration. (Reasons are listed there…)
I was kind of sceptical, but I tried it.
Guess what happened…
So thanks a lot @Namasaki ! You gave me the solution, I wanted, (in another thread, but that doesn’t matter… )
Also thanks to everyone else, for suggestions!
I am sorry, but this also means that the 4S board won’t happen here…