Platter for Rega RP3 turntable

I have extensive experience with the Rega tables and have tried many different tweeks.

My favorite platters (in order) are:

1.  Funk Firm Achroplatter...the best, period.  I don't think they make them anymore, but still make the Achromat platter mat.  One of the best mats available.

2.  The GrooveTracer Delrin Platter

3.  The Shear Audio/Iron Audio acrylic platter

4.  The Rega OEM glass platter

MoFi makes a great point.  Just because I don't care for the Groovetracer platter doesn't mean that you won't.

It is certainly warmer than the glass platter, with greater sustain. The leading edge of notes seems blunted, IMHO.

 But we all pick the sound that suits our listening bias and system context better. You should listen for yourself and decide. All of these things are viable alternatives in the right system context.

One thing that is not debatable is that the dollars start adding up quickly and pretty soon you are in LP12 or VPI, or SOTA territory.

I see that the Achromatic platter mat sells for a little over $100.  I'm thinking of buying it based on MoFi's recommendation. I can always return it if I don't like it or it makes little difference.
It's amazing what a little tweak can do.  I just yesterday got the Rega white belt, and the improvement was amazing.  All of a sudden the imaging snapped into place and the sound became fuller.  The bass even improved. I never would have believed it with just the change of a belt!
i originally mistakenly ordered the Edwards sub platter.
I haven't read any good reports about it, so I ordered the Tangospinner from Argentina which I've heard many good things about.  I haven't gotten either of them yet, but when they arrive I'll try and compare them and return the inferior one.  I know the Groovetracer sub is the most recommended but it's more than I want to spend.
viridian, Your certainly right about the dollars adding up, but for a few hundred dollars it's cheaper than buying a better table.

Another improvement I was thinking of was the  Rega TT PSU.
But at $400, it gets a little expensive.
Also, how much better can the sound get!?

P.S. I ordered the Achromatic platter mat.