Rega P25-best upgrade


I'm considering two different directions, one which is not exclusive of the other as it too can be done at a later date. Therefore, I'm wondering which will give me the biggest bang for my bucks and why?
1. Add the 3 Groovetracer upgrades: Subplatter, platter and counterweight; or
2. Add a new Cartridge. Currently running Dynavector 10x5 and considering Dynavector 17D3, Sumiko Blackbird or Clearaudio Virtuoso Wood (with the Dynavector 20XL or XH in the back of my mind).

The reason I might consider using a High output cartridge over a Low output is because I record each album I play to CD so I don't want to have to crank the volume to get the CD up to the gain point of regular CD's. That is, even with the Medium output 10x5 I still need 60 db of gain (and that's the max) and that is perfect for recording. Not sure how a low output cartridge would do as I've never used one. Associated relevant equipment Rega P25, Bel Canto Pre2p and M-Audio 24/96 sound card. Let me hear what the experts have to say...I certainly am not one. Thanks.
nodaker
I also have a P-25, and would like to know if anyone has used the Living Voice Mystic Mat with their P-25? If so, is it actually worth the $500.price tag?
Winoguy17, you may have been kidding, but I feel the need to stick up for Audiofeil. Dealers often get a bad rap, but there's nothing wrong with selling equipment you believe in. He also contributes a great deal to the forums. If you look through his answers, you'll see that he's a wealth of knowledge and willing to share what he knows. I just wanted to point these things out.

That said, I'd also like to know what tonearm he recommends.