@big_greg,
You should try a MyMat brother. It’ll bring out more of what you’re tt is capable of.
I know the PEET film helped quiet the VPI. There’s also a ruby tipped adjustment screw for the dual pivot that I’m gonna try with the film.
Also, you could change to the HRX pulley and use 2/3 belts, asumming you have a speed controller.
PM me if you want to talk more.