Sorry guys, missed the end of this post??
We do the bronze-lined guides here, in house! You will never experience another "hung" valve where you install a set. Between the stainless valves we use and the liners it is a "bullet-proof" method.
Thanks, Gary in N.Y.
P.S. We began doing these over 40 years ago, started with my own 8BA in an F-1. I don't know how many we've done altogether but I know it's somewhere in the thousands literally! Just the past couple years up here alone we've done hundreds for the Barn members.