Iron Audio or Rega Glass Platter?

Anyone try the Iron Audio replacement acrylic platter on a P25 or P3? If so what did you gain or lose and are you still using it? This is probably the last tweak I can do on this P25 and I wonder is the acrylic is better.
I have heard the colouration that a glass platter lends to the Rega sound.It is there and manifests as an added harshness or makes the music brittle if you like.I much prefer an acrylic platter as it is very neutral and does not colour the sound emanating from the table.There are quite a few after-market acrylic platters for a Rega out there.I would go heavier i.e about 20mm depth for the extra neutrality and rotational stability.