ORIGINAL: cmoulder
Oops I forgot about that part! Hyde's ads claim very large drops in current drain, and there is plenty of independent evidence I've read to back it up.
The Focus Sport was the first plane I used one on (Hyde plus home-made nose ring), and while the plane does of course vibrate, it doesn't have that harsh edge to it like a hard-mounted engine would cause. I do have a comparison there because I had a Venus II with a hard-mounted OS 1.20FS. Big difference.
I think I may have mentioned that I am still using original, never serviced servos in my primary plane. Temptress has something like 1500 flights on her by now over the past 6 years give or take. Never have changed the pots, gears, whatever, in them and the mount is the reason.
The planes shake at idle, true, but it is at a much lower frequency than the 2000 rpm or so of the idle. At high revs, the planes don't even shake. Touch the aileron at the tipe and you will feel the difference.
Matt