I just picked up a '96 Strat Plus - wow, what a nice guitar! Inca silver, pearloid pickguard. The previous owner had the Lace pickups replaced by 57/62s. While researching this model I see that it had Sperzel locking tuners, later replaced by Schaller locking tuners. Is there any way of telling which kind I have? These are not shiny chrome at all, very dull looking. It also has the LSR nut, instead of the Wilkinson.