I bought a smart-fly sport plus with a regulator attached to it for my giant scale p-47 last year. Well i just had to check to make sure it was regulating the Lipo batteries down to the 6 volts it said (and yes it did). but when I was checking it with the meter I some how slipped with the needles and I shorted out the Unit. I had a brand new unit that was not in my hands for more then 2 days and I had to send it in for a 25 dollar repair. 10 POINTS on my part.