I run 40psi front, 36psi rear on my 135 GT line. I think that lower pressures induce tyre wear on the shoulders of the tyre and putting a bit more air in evens up the wear across the face of the tyre. I haven't noticed any loss of grip or comfort with the increased pressure.

Thanks for your reply Jon. I have contacted the dealer and he has agreed to do the 2nd year service in October 2022. Thanks David

Sorry, I meant if l book the 2nd service for March 2023 (i.e. 12 months after the first service). Will that be OK and keep the warranty going? Thanks David