I'm never quite sure how to measure a guitar pedal when adding or correcting one. Should I measure:
A) just the box itself?
B) or include the jacks?

Measuring between the jacks can add 5 to 10 mm or more to a dimension which would help to better gauge placement and available space but might distort the image of the pedal? Of course spacing is going to be dependent on what type of plugs are used so . . .OH! Idea! ("plug" module idea removed from this thread and I'll start a separate thread for it)