Stan, I've used Pro Custom for the last 2-3 years since I can no longer get Permalyn. I can, at least for me, highly recommend Pro Custom it's easy to use, dries fast (with a caveat), seems to penetrate the wood and fills the pores with multiple coats. This urethane is not like the urethanes from the 60s, it bonds very well from coat to coat and doesn't leave those dreaded fisheyes. I do have two caveats the first is it doesn't dry well if the temp is 95 deg with 90 percent humidity, second is if you plan on checkering the stock don't wait 6 months to start. The finish continues to cure and is much harder do the initial layout, ask me how I know.
As a side note I am planning on trying a ceramic top coating formulated for wood we'll see how that works out.
