I have a razzle with a mvvs 77 with the mvvs tuned pipe,im running fut.9303 servos throughout the hole plane and a 850 nmhi battery.in flaperon mode when i try to pull a tight loop its like the plane snaps right out of the loop at the top.could this be to much elevator or to much flap? please help

Hello ? We only have 1 short test flt on our Razzle so far and have not tried any real tight loops with the flaps mixed in yet so not sure , but it sounds like you have to much ele in it.
On most of our FF planes I dial in as much ele as it will take for a tight as possible loop , then start to dial in the flapps about 10 % at a time untill it tighten's up even more. Normally the flapps will not make it snapp out - it will just get real musshy and not pull thru the loop at all (to much drag) ! How much flapp do you have in it now ? Let us know how you make out. Rod & Chris in PA.

Also try spoileron instead of flaperon.