Originally Posted by MRGTX
Speed typically requires more voltage. I'll agree with you there. In this plane, iirc, you need ~500W to hit triple digits...much more easily attainable with 4s than with 3s.
All of the 100+ EF-16 setups I have seen in person have been 4s+. The real high speed guys are running 6s, I believe.
squall looks pretty good for the money. 4 cell version just under £100 all in except servos in the uk. might be tempted