Came to a conclusion that maybe F4U is not the most ideal plane when u want to perform roll, loop, flip n inverted flight..etc,...doesnt do as well as F6F or P47 Razorback....notice that P47 has diff version, FMS 1.4M P47 is the older design,..the newer ones has the name Razorback to it,..those 2 planes are awesome in arcobatic flying..maybe they have similar shapes..except for the wings profile...I havent try spitefire, zeros or stuka...so dont know how well they do...anyone wants to comment?