Hi Charles,
Would the GP ElectroStik ARF/Rimfire 42-40-1000 combo fly ok using 3 or 4 VPX1100 cells?
The 1100 mAh A123 (B&D VPX) cells are not enought. I use the 2300 cells. I have no idea how the other poster smoked 3 of these motor but my original ARF one with supplied Rimfire has over 100 flights using 4 and 5S 2300 A123s and the only problem I had was with the servos. They are slow and the gears strip easier than Hitec 55s.
My second one with the Scorpion and dual aileron servos now has 285 flight and has been flown on 4Sand 5S A123 (2300) as well as with 3S2P 4500 LiPolys.3S1P 3300 LiPolys and 4S3300 LiPolys. It develops over 1,000 watts on a 4S LiPoly. The ARF one sets in the hanger(shop) in case I need a spare. Truth is the Scorpion powered one is just a lot more fun to fly with the insane amount of power it has.
Charles