Step 5 - holes fixed!

With lots of help, I was able to recover from my holy disasters.

Duncan re-cut the hole on my cherry plywood back for my cajon with a jig saw.

Using a dremel sander and taking it really slow I managed to get the Schlagwerk kit back piece to sport a reasonably round hole.

I am now satisfied so I can move on to the final steps.

Here is my cajon with Duncan's new hole,. with the back temporarily in place. 

Here is the Schlagwerk kit back with the hole sanded. Its not perfectly round but good enough for me, and who will know its not perfect, except me (and you..)