So (as my FS ad will tell you) I bought the wrong size switch tip for my Carvin. It's a shame, because it looks fucking sweet in chrome.

The tip I bought is this one:

Metal Chrome Toggle Switch Cap for Gibson Tip Knob - eBay (item 150453342192 end time May-04-11 17:02:14 PDT)

The tip I need is the same that's on my Sherman and my Schecter, but I've no idea what the hell thread size it is. Can any of you fine gents point me in the right direction?