Hi Gav,
Double Checked with Stewmac's Fret Calculator and now I am little more confused as I am not sure what he means with the measurement?
What is the centre of the forward-most mounting screw?? Is that half way up the middle screw of the three saddle screws? The measurement would make sense if this is the case.Bridge placement for 645.800mm scale length
Distance indicated is from the fretboard edge of the nut to center of forward-most mounting screw or pivot post.
Telecaster® style bridges = 652.131mm (± 0.5mm)