Rega upgrades/tweeks

I've read elsewhere that the Deepgroove and Groovetracer subplatters correct the Rega's speed inaccuracy (too fast) caused by the dimensionally incorrect (diameter too small) stock cast plastic subplatters.
A Rega TT-PSU also corrects this speed inaccuracy on P5s and P7s. When used together with an aftermarket subplatter, does this result in a too slow platter speed? Has anyone tried combining a TT-PSU with one of these machined subplatters?

Actually now that I have lived with my Rega P5 for around eight months, I enjoy the sound so much as is, I am not tweeking a thing...except perhaps a new Rega felt mat red or purple hmmm...

I've installed the deepgroove subplatter with ruby bearing, and use the TTPSU with my P-5. I am now solidly in Yesrogers camp; no more upgrades. I'm just buying more vinyl and enjoying it. I've also quit trying different cleaning fluids; I'll stick with the one that I like and just go on with my life. I can now listen to the music, not the equipment.

Joe, Don't you own the Groovetracer subplatter?

I do, indeed. At my age I confuse terms sometimes, it is the groovetracer w/ruby. Every LP is another small adventure. I'm also learning the CRITICAL importance of keepting the stylus clean.............