I've been running a DX3 radio + 3500 rec + Tekin B1 esc + 4 - 2/3a battery. I have 2 - identical cars running the same equipment. As long as the brake epa is 100% it works just fine, holds the bind.

Now, I upgrade to a DX3.0, again two cars identical, but now if I switch to model 2, bind, then reset the esc, then switch back to model 1 it has lost its bind. I switch back to model 2, same thing.

I have tried this with 2- brand new 3.0 radios. Each with the same result. Spektrum service says they may not be compatable. Tekin says they're esc are compatible with anything. So there you have it. Has anyone had a similiar experience with the 3.0 + tekin B1???