In a range check I suppose you should not draw many amps from the reg. Are you sure everything is moving whitout any resistance? The sensor can take 10 amp peaks easily but this is ofcours easy to misunderstand so i understand why they keep a low profile on that. If it is ok for yor application or not you have to figure out yourself, depends on many thing like what type of servoes and equipment you hva chossen ofcourse. You can also skip the lipo for the A123 or Life instead and the heatsink will have a much easier job i guess.

I use the sensor in A Carf hawk, a Carf edge 91" and a 6meter Ventus and i love this regulating switch. It just works as it i supposed to. I have never used it with Lipo.