Lets see if my attempt to insert a picture of my GoPro mount works . If you end up with a "post" mount , you could try wrapping a nice bunch of modeling clay around shaft to see if it helps. In machine work , we use it to cut down vibration on thin material , works well . If it makes a difference , then move on to a dense foam collar . I may do a litttle work on this problem , as I think I'll be going to a Wee-Strom this spring . Going from the velvet smooth V-4 , to a twin , I may deal with this problem a little more . Good luck .