i have Ballraced standard 3004's? is that the right number?
on really high speed i do notice that i loose that sensativity around center stick, might be the servos not coping. i've got a MVVS half tunned 40 up front, with a APC 9x6, got a 9x8 to try when weather improves, no idea of rmp, but i've heard it max out a couple of times.
The covering is really important, i did mine in Solarfilm, and even used the gule stuff to tack it batter and seal the edges, but after a few landings the film around the bottom of the engine mount lifted and i lost it mid dive. i kept flying slowely for the rest of the flight
its now been replaced by Solartex, tho ony this center bit, the rest has tape over the edges to reinforce