Stay with the 1.60 FX. It has plenty of power to do any of the 3D tricks. Use a good 18x6 prop and if using the brison muffler cut the rolled tips off. I have a 1.60 on my H9 edge and it have unlimited vertical. I use the 18x6W APC which pulls like a tractor out of a hover. Most of all keep this plane light. Do not exceed 13 pounds in weight.