I like to cap the heel with a wood that matches the fingerboard, but in this case Stephen wanted some Koa on his instrument so I decided to match the koa on the end piece with this Koa end cap.
Preceding the end cap will be three pieces of thin veneer sandwiched to make a black/white/black detail under the thicker Koa Cap. Lets see how it goes.
and here is the final result after a little whittling and scraping. when this is all shaped and sanded it is going to look very nice.