1 BuddyHollywood 5 years ago I received a stainless steel Tru-Arc Serpentune bridge for my Duo Jet last week. I have always been into tuneomatic / adjustomatic bridges because of their adjustable intonation and have never tried a standard bar bridge on my guitars. The Serpentune is the best of both being a solid piece of steel with compensated string slots similar to a traditional Bigsby bridge. I noticed the improvement in sustain right away. I also noticed that the bridge allows the strings to ring more pure meaning that I can tell more frequency vibrations are being transferred and not getting absorbed or choked. This is great! It's also refreshing that the bridge doesn't rattle. The intonation is on. I've come to the conclusion that a Tru-Arc Serpentune bridge really is the best bridge for a Gretsch guitar. It just works.However, out of curiosity I also installed the stainless steel Serpentune on my Epiphone Casino. It didn't gel on this guitar at all! It added boominess to a P90 guitar that already has a warm midrange. In all fairness I don't think a stainless steel Serpentune is the right material for a Casino. When corresponding with Tim (Proteus) he mentioned that he has an aluminum Tru-Arc on his Casino. That makes more sense. Also, since I was already experimenting I installed the Gotoh Adjustomatic I previously had on my Duo Jet on my Casino and that also didn't sound as good as the thin, wire retained tuneomatic that came stock. Huh? I was really surprised about this.Tru-Arc Serpentune bridges work especially well on Gretsch guitars. I'm wondering if it's because many of the golden age Gretsch guitars were designed to be equipped with bar bridges in the first place.