A couple of months ago I bought a 1978 Greco SE500 (http://www.strat-talk.com/threads/greco-se-1978-pickup-identification.453410/) I have played it a lot and I find it is a good-sounding, very playable guitar. Now I am thinking of tinkering with it a little It has the original (I think) 3-way switch with no "in-between" positions. I'm thinking of swapping this to a 5-way switch. But I notice that the original switch on the Greco is not the same dimensions as the standard switches of today, the Greco switch is noticably shorter. Do any of you knowledgeable people on this board know if it possible to buy a switch with the original Greco measures - or would changing the switch require making new holes in the pickguard?