Adriaan, are you sure on that? It would not be the first time I got something ass-backwards. I have a 2003 with the thicker keys and a 2006 with the Schaller-like keys. I talked to Mica on the phone a month or two back, and could swear she said the Schaller-like ones were the new ones. This could be bad news for me, if you are correct, as I planned on replacing the tuners on my 2003, as I do not like that style.
A bit off topic - I'm in the wasteland so I have no stores that even sell leather straps, much less have tuners to compare. Gotoh tuners have a larger mounting hole than Schaller M4's use. Does anyone know if Hipshots (Ultralites) have the same sized mounting hole as the Gotoh's? That would solve my 'problem' nicely!