I bought one of Tim's Tru-Arc SerpenTune Brass bridges for my #6122 Gent that Curt brought back to life. WOW!! The guitar now plays in near perfect tune up and down the fretboard! I normally set intonation at the 5th & 17th frets. If you do Open & 12th, then above the 12th isn't nearly as accurate. This was a recommendation from Petersen Tuners and it's worked for me for years. Anyway, this bridge is amazing, the guitar sounds just incredible and I'm thrilled. Played Saturday afternoon up in the Mountains north of L.A. in a little village called Pine Mountain Club. I'm giggin' with Ron Coleman who was with The Everly Bros. for over 20 years and with Albert Lee. He's had a number of hits on his own as well as songs he's written with the guys from The Band & Dylan. We played out on the patio and should be much cooler at 6,000 ft. up than here where it was a balmy 107F yesterday. We've done this the last six Saturdays! Anyway, if you're using a Bar Bridge and have intonation & tuning issues, you owe it to yourself and your guitar to get one of these!