Hi Carl,
Please update us on how swapping out the tuners goes. I'm also strongly considering the Gotoh 510s for my 2011 GA4, but wasn't sure if any modifications to the headstock are necessary. Which 510s did you decide on? Congrats on the new guit!
I haven't decided on which Gotoh's I may go with or if I'm going to change them at all. My new guitar is scheduled for delivery early next week. I'll see what I think about the tuners it ships with first. I'm pretty particular about changing anything on a guitar that it wasn't shipped with from the factory when I have to modify the guitar in any way (ie. drilling holes for new tuners). I've been thinking about how I can get the 510's on there without drilling. Here are my thoughts.
The Taylor tuners have a pin on the underside of them that takes care of the tuner anti-rotation that is actually part of the tuner. The Gotoh's have the additional screw which you have to add. I'm going to try and find just one Gotoh that I can modify first (not sure I can modify it until I get one in hand). I'd like to machine off the screw tab from the Gotoh and put a small hole in the underside of the tuner exactly where the hole in the head stock currently is that the anti-rotation pin from the Taylor tuner goes into. Then I'm going to machine a small pin that I slightly press into the existing hole that is about .030" to .040" proud of the surface. This pin will fit up into the hole of the modified Gotoh tuner providing the required anti-rotation. If this works I will have a totally reversable modfication to my new guitar with no drilling. I know this sounds like a lot of trouble but I love doing this kind of thing and It's more a quest than anything else. I know that I'll have the machined/unplated surface to deal with where I removed the screw hole from the Gotoh. If all works well I just might send them off to get re-plated.
I have a 71 P90 Les Paul Gold Top that I've changed out the lead P-90 with a Humbucker and did no routing what so ever to the guitar. I actually modifed the pickup to fit the hole in the guitar rather than modifing the guitar to fit the pickup. Kind of the same thing here with the tuners. I'll keep you posted on this
Does anyone have a spare Gotoh 510 that they care to donate to the cause?
I will be ready when he comes!