After a few dozen flights I really could not see any negative effects of the Hyde Type A mount.

It does stop the vibrations in the model. That I could tell right away. The engine bounces a little at slow idle and will move a little when you wack the throttle from idle to full throttle. When hovering I am already at 1/2 throttle and only moving the throttle a little. I could not tell that the thrust line was moving.

The Hyde mount is really nicely constructed.