I play stock Gibson LP's and SG's and find that this one SG with a fatter neck seem to hold tuning a little better, My others all slip,no matter who sets it up,strings it up.. I'm stringing the guitars up properly w a good amount of wrap, I stretch the strings a whole bunch, but I find that my other three Gibsons constantly need to be tuned, except this one SG RI with a really fat neck. I was wondering if new tuners would help, Does a thicker neck help with tuning stability? I have a preference for slim necks. Are the slim necks likely to be the cause of this issue? I'm at the point now where I need things to be slick and professional onstage, staying in tune is the number one priority. I have a rather aggressive, expressive style of lead guitar, I like to bend the hell out of strings,and I use lighter strings too..009's It's probably the light strings,thin necks and my aggressive style that adds up to a recipe for disaster, Any tips for helping my stock Gibsons hold a tuning better?