Thanks for all the replies. At least I know I am not alone in not being able to lock the TM brakes while adjusting.
I have searched all the internet and can't find a real good answer to the question. I have been keeping my power setting on 6 or 6.5. I will experiment some more with higher settings when I get the TM out the next time.
I just wish there was a more "scientific" way of setting the adjustment
.
Thanks, Keith