I think it just came unsoldered...if the traces broke off would it still work? If they did break off can they easily be replaced?
I have a BK that had the same problem. What I did was just expose where the trace is and soldered on top of it. The PCP trace that was on the bridge have to be removed. I wish I had it with out the black shrink wrap as I would take some detailed pictures for you. Contact GriffinRU, he'll have a solution for this.
Do you have 6V or 5V UBEC? I had problems in the past with Airtronics receiver running at 6V from similar UBEC...
I believe it's a 6V UBEC. I originally had a JRRS300 receiver in it but it was doing the same thing so I tried the Airtronics receiver...but still no better...
Here's my bet: If it's okay when you ease into the throttle, but stutters when you punch it, your batteries are too weak. The BKs do that when your batteries are a) almost empty, or b) not up to the task.
Try with better batteries, chances are your issues will disappear.
Daf
RC/DC - Brushless Conversions since 2000 !
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