What one has to remember is that there are two alternatives: Soft mounts and isolation mounts. The difference is quite obvious, soft mounts "Hyde or similar" are soft. They allow the engine to wobble in the rotary axis. Unless specified, many will also require engine nose ring fitted to the aircraft to maintain a constant trust angle. This isn't as easy as it seems with a glass engine and a detailed scale cowl.
The other alternative is isolation mounting... as shown in the previous post. These keep the engine far more rigid than a soft mount, but because there isn't any direct engine to airframe contact, filter out quite a lot of the vibration buzz. Definitely the way to go for a scale application IMO.
Ive tried all types of soft mounts some years back in pattern aircraft. The Hyde mount was without the doubt the absolute best, resulting in a quite dramatic noise reduction. But they can induce a rather frightening wobble to the airframe at idle/low throttle setting. No problems for us but I'm sure it would, with extended use, easily shake the details out of you tail plane.
Last edited by David Bathe; 08-27-2016 at 08:26 AM.