Thanks Bryan, I'll relay this on to the fella who is fitting and tuning for me. It must leave space a bit tight between the blocks though once they're glued in, do you reckon it will still be possible to fit and wax in the reeds? Would it hurt to enlarge the sound holes slightly with a file?

The space between the reed blocks will be the same if you put them in the right place, and yep, it's kinda tight, but not so bad. I don't think it would hurt to open the holes some, I didn't, but wish I had.