Well, it depends on what you mean by snap... The plane will do any maneuver on the factory specs including beautiful snaps on no more than 1/4" aft. Mine flies with a Saito .91 and a 14 x 6 prop up front and the engine change along with 30% more throws made more difference in the performance than when I moved the CG. For more action I built a Sig SE with a Saito .72 to hover and out perform the extra-300 for 3D. Are you wanting to hover and such or just get the feel to the point of snapping with just full elevator?

By the way mine is a kit and runns 20% expo on the elevator and 35% on the ailerons.

quint