He did my 99 YZ125 and he did pretty good work, but very expensive! I would have rather had Eric Gorr do my cylinder but he was out of the porting business at the time. Eric's the best bang for the buck period:)
I have had motor work by tmr and many others,he is more money but they run good he gets my business. My tmr motor works better for me than my egorr motor did . good luck
Tom does my bikes, motor and suspension, I have nothing but good things to say about his work. I know he buys all the bikes every year and does alot of testing to get them right. I belive that you get what you pay for.