RE: Seagull Edge 540 v2 2 stroke engine choice
I have a YS 91AC in mine and I am really satisified with the preformance. Plenty of power for normal aerobatics. Has unlimited verticle Engine runs great and pulls great. I use YS20/20 fuel by Powermaster and a 16x4 wide blade APC prop. I am not into 3D so I never tried to hover or do any other 3D manuvers. I am really happy with this combo.
Flashingred