RE: Vibration reduction mounts
G'day Mate,
You would do better, if you invested in a prop balancer & learnt how to use it, that is one of the best ways to avoid lots of vibration, out of balance props cause major damage to airframes & radio gear.
The bigger the prop the more damage they can cause, if out of balance, but small props need to be balanced too. They can vibrate, just at a higher frequency.