If you use a Music Man guitar, you shouldn't have a problem with the tune - if you put the strings on its right way!
Because of the locking Schaller tuners! If you put the strings well, there's no chance to go out of tune. It's just impossible.
I had more than 30 MM guitars, Luke's, JP's, Axis SS, Silo Special, and I never had this type of problem with them.
Except my first JP, when I didn't know yet how to put the strings on a right way.After I learned it. I think that this is the real problem. You also don't know how to do it. Yet. Look some pictures of it or ask your MM dealer!
Anyway, if you have not MM guitar, you can use this setup, it works with every vintage tremolo:
Hey! Thanks for your feedback! There's any secret to put the strings correctly? I just keep the string stretched as possible and just turn the tuners less as possible. There's more secret?
Bye!