Though I have flown mine with standard servos and stock hardware, folks have complained of bending pushrods. At this point, I am using all digital servos, 4-40 rods & ball joints. As for speed, I love the way I can outrun the 40 and 60 sized caps and extras (without a hint of flutter mind you!) and still be such a great 3D plane. If mine werent fast, it would have been tossed it out like yesterdays news with the rest of my 3D planes. This one is a keeper....for now anyways.