Mat for Rega P10


I decided to start this discussion to hear different experiences from Rega RP10 and P10 users. I know Rega does not suggest replacing their own, supplied with turntable, mat as doing so can degrade the sound but I have to say that I am loyal opposition to that concept, looking for replacement ASAP.

I know Framer recommended the Stein Music The Perfect Interface Carbon mat but $625 for mat is quite steep I think. Even the cheapest one is $250 and I do not consider It a bargain. 

Does anybody here use either of those two mats and can share some insight as to why they are so expensive and if they really make that much of a difference?

arturgorniak
I have ordered Teac TA-TS30UN (made in Japan) "Washi" mat that shares similar concept with  Stein Music The Perfect Interface for the fraction of price.
Several RP10 users recommended it to me so, considering its low price ($29), I decided to try it.
 
http://audio.teac.com/product/ta-ts30un/

Please respond with your impressions of the Teac mat once you receive it. I would be curious to know how you like it. 
I know Framer recommended the Stein Music The Perfect Interface Carbon mat but $625 for mat is quite steep I think. Even the cheapest one is $250 and I do not consider It a bargain.

This one from Sakura Systems is the latest version of Boston Audio Mat.
Price is $250, great lightweigh mat!

Another great mat is SAEC SS-300, but the price is much higher. 
@chakster @mofimadness 
the mats you guys are mentioning here are 4mm thick which will present a problem with Rega Arm that does not allow VTA setting.....I have to stick to 1-1.5mm mats. We will see how the TEAC will work...

@guy-incognito I will keep you posted.... friend of mine just ordered one for his Acoustic Signature WOW XXL with TA1000 arm and Soundsmith cart so it will be interesting to see how the same mat compares on two different platters. 
Rega Arm that does not allow VTA setting.....I have to stick to 1-1.5mm mats.

Do they live in a different world at Rega ?

I forgot about Rega philosophy. Tonearm without VTA settings is made ONLY for Rega Own cartridge ... 

Each time you change a cartridge for something much better you need to change the mat or to add something between cartridge and tonearm. And it will work only if the arm pivot is too high. If it's too low then you can't do anything. This is Rega, thanks.