I've noticed when I crank my Peavey Classic 30 that there seems to be a lot of vibration coming from the chasis. I really notice it when I kick on my SD pickup booster and play lower notes. I took care of the tube rattle with that tube tamer kit on eBay and have been real happy but I can't take the vibrations on higher volume. The mods section on Blueguitar says that this is common on the Classic 30 and he recommends removing the chassic and adding weatherstipping where it comes in contact with the cabinet, then reinstalling. Seems like it should work but has anybody tried it?