RE: 3in1 question
I did something like that with one of my car ESC's when I first upgraded to lipo's. I'd imagine that the 3 in 1 would need to be trimmed once you install it. as it would have different settings for each aircraft. and the factory will probably put it in a ball park area. I'd start with both at 12 o'clock serttings. and make minor tweaks from there.