RE: New P38 90
I am on my second 90" P- 38. Electric with both props turning the same way. No problems. I considered glow power but the tanks came out quite a bit below the carb, so decided on electric. Plane is eazy to fly and looks great in air. Nice thing about electric, other than dependability, is you can climb to altitude and shut down motors and glide around. Yes it does glide well. Then start up and continue powered flight.
Flew a B-26 with glow and that worked well too. Tune each engine individually so each engine is running at its best, full speed, idle and inbetween. DO NOT try to match RPMs. A few hundred RPM difference will not affect flight.