Rega P5 Upgrade:TTPSU,Platter Or Subplatter?


I have read about Groovetracer acrylic platters and subplatter Reference being an upgrade to the stock ones in the P5. I've also read about better counterweights, one of them being Michell Tecnoweight to improve on the stock stainless steel counterweight on the P5.

Just out of curiousity, which upgrade below will yield the highest degree of sonic impact in chronological order?

1) Rega TT PSU
2) Groovetracer subplatter Reference
3) Groovetracer acrylic platter
4) Michell Tecnoweight counterweight
5) Clamp

Anybody tried an aftermarket acrylic platter on the P5?

Any opinions would be appreciated.
ryder
I would say the improvements rank just like you have them listed. TTPSU - best improvement
Thanks Miner42. Looks like the TT PSU is definitely on the way into the system. I am just curious on claims about the inferior stock subplatters in the Rega P5 and the lower models after having gone through some comments in Audioasylum. The arcylic platter does look pretty cool though.
Get a P-7 No Joke!
I owned the P-5 with all the upgrades you listed above
and they made a very good improvement to the P-5.
The Acrylic platter however was brighter then the stock
glass platter and this my not be good in some systems.

When I went to the P-7 the improvements were even greater
then the modified P-5. If you can do it, sell your P-5 and
go straight to the P-7.

If you don't want to do this then get the power supply
sub platter and clamp first. Get the tone arm weight and
acrylic top platter later.