Been running my Tartan Twin on the test stand and the vibration at idle is of high concern. Once past idle, it is very smooth, but the normal two cycle idle nature is taking the test stand to its limits.

Curious as to what soft mounts gas flyers are using on their engines. Rather than home-brewing a solution, I would rather buy the mounts and then machine my own engine back plate to mount them to to make the transition to the aircraft firewall.