Originally Posted by
Simon Barden
What's the nut to 12th fret distance? I'd never trust a flexible tape measure for accurate readings as the metal end is always out by a bit. If you haven't got a long metal rule, then try measuring again but start from say the 10" mark (so you are looking at 34.75" in total) as I find it's a lot easier to just add 10 to all the dimensions rather than any other integer.
But measure to the 12th fret. Gibson have changed their scale length and although it's been close to 24.75", a lot of the time it's been slightly different. Paul Reed Smith said that he took a ruler and measured a lot of old and new LPs and said it's 24 9/16", rather than 4 12/16" (which would bring the saddles further forward). Don't assume it is 24.75".