I'm having similar reservations about what bridge to use. I've been playing a Les Paul for the last 4 years and it's the first fixed bridge guitar I've owned. I've got Sperzels on it and it stays in tune well. I `think` I want to have a trem on my strat though. Argggg, how's the intonation and tuning on the Callaham or on a Wilkinson? I will definitely go with Sperzels for tuners. My real question is should I go with a fixed bridge, Wilky or maybe a Callaham trem?