Scoutmaster Isolation

Might be better to get rid of the glass shelve, and replace it with a heavy maple wood replacement. I would even think that a wall mounted target type mount might suit you better. What kind of floor is it all resting on and or where do you believe the vibration problem is coming from? I would say if you have all setting on a bouncy wood floor than go the wall mount way but if the floor is tight than possible gettting rid of the glass might be what is needed.

Put the TT on another shelf, then put some squash balls between that new shelf and the glass shelf, effectively isolating one from the other (or you could actually buy a Ginko Cloud and use it).

Enjoy,
Bob

My dad has a Ginko Cloud under his Smaster, works great.