How to use new SRAM TT chainring with SRM powermeter?

Does anybody know, what to look for when you change the original chainring from a 53 to the new SRAM TT chainring of 54 or even 55 on the SRM SRAM powermeter? Do the power values change? Also is there anything to look for in particular when assembling?
Thanks

no, why should they? anyway, you do an offset before every ride. but once again, there shouldnt be any problem with the bigger ring. mount and ride.