I just had my mechanic put Dunlop Q2 tires put on my K1300S which is fitted with TPM (Tire Pressure Monitoring). The TPM warning went off immediately when I rode off, and so I went back to get the pressure fixed. He had put in 34psi and was reluctant to put in more. Note that he is a certified BMW tech, and works on a lot of high performance bikes. He said that if he put in the 42psi called for by the manual and the TPM, I would get improper wear on the tires. I couldn't ride with a flashing warning light winking at me all the time, so I had him air it up to 37psi, and now the TPM doesn't pester me. Looking at the tirewalls, they say max load 850lbs at 42psi. I ride it like the sports bike it is. What pressure should I run?