I’ve finished one pickup, still have another to finish but it is close. I came up with one of those eureka moments very early this morning. I came up with a plan to make a pickup bobbin out of a single piece of wood (in this case I chose Ipe for its strength and stability). I clamped a piece of mahogany scrap to my table saw for use as a jig, and after carefully dimensioning the stock, I was able to make fairly precise slots. Cutting to size and more slotting followed, and after sanding and drilling I was ready to wind!