Originally Posted by
Artfull-Bodger
One of the biggest problems is making sure your holes for the posts line up squarely, the method I now use is what HW do on their 98, (I basically copied it), you drill the holes from the bottom of the butt up into the part you wish to make adjustable this then ensures alignment.
I then wrap the butt up tight with tape to prevent splits and allow me to mark the lines, then I cut it very slowly with a 14tpi hacksaw blade in a blade holder.
You can then insert rods to raise and lower the cheek piece, and there are plenty of examples on different adjusters.