Re: Tuners for American strat
fender/schaller locking tuners...drop right in since they are the only ones with the 2 mounting pins like regular fender/schaller tuners...all other tuners use one pin or a screw to hold them on which means you have to drill holes. however if you go with sperzels they will cover the "footprint" of the old tuner for the most part but you need to drill a hole b/t the two fender holes for the one sperzel mounting pin. so, there you have it for modern tuners with no drilling.
-Mike