I have dealt with Ron Shaver in the last couple yrs and he has a lot of respect from people like hilborn and Brodix.
In fact i have a set of Brodix/Shaver s/blk heads, that needed some repairs and i sent them Ron for the repairs.
I shipped them to Ron and after close inspection he decided that the repairs would cost more than replacement and sent the heads back to me with no charge for the inspection and even paid the shipping back to me, so i think he's good people.
Zip.