
The index "pin" on the fence is a piece of blunt utility blade, sanded until it has a snug fit in the template slots and then the edge was rounded to reduce wear on the template. Fits snugly into a slot in the fence and kept with minimal protrusion as per Mario's advice. It starts about 10mm above the table, so even thick fretboards will fit, and the template is thick enough that it still engages with thinner fretboards.



I slotted a dozen fretboards with it today - what a pleasure!
Thanks again to all who helped with this.
edit - clickable thumbnails don't seem to be working for smaller pictures- let me know if you want to see them big.