I have 3 PRS guitars. They are a 97 Custom 22, a 25th Anniversary Custom 22 Semi Hollowbody LTD, and a new (2013) Custom 24.
Let me preface by saying: setup is good on all 3. Bridges float level, etc.
On my older C22, I have never been able to get the low E string to stay in tune. I've tried teflon nut lube etc. Every set of strings I've have ever put on has had this problem. Any trem use at all and the E is out. Even just bending, it's out.
On the new C24, at first I thought it just needed a bit of breakin. With it, every single time I give a LITTLE wiggle to the trem, at least 3-4 strings stay out of tune (sharp). If I pull on each string around the pickups, it will go back in tune. So again, I figure they are sticking at the nut. Teflon/silicone nut lube hasn't helped at all. New strings haven't helped at all. What can I try next, to make these stay in tune? The older C22 can't even be gigged because it simply won't stay in tune. The C24 can be as long as I don't bend, use the trem, or, remember to literally grab the string and pull it back into tune afterwards.... hardly workable.
And now a slightly different but related topic. I have considered the possibility of converting one or more of these to non-floating trem setups. This would allow for drop tunings on the fly, and should help tuning stability. I have done this on numerous other guitars, but wanted to ask if there are any tips, tricks or otherwise that I need to know when doing it OR, any reasons why I shouldn't.
Thanks in advance.