Hey Warren, finished preping the fingerboard this morning and the epoxy has now been on for about 4 hours, and looks to have bonded to the fingerboard. Apparently epoxy takes longer to cure than polyester resin, so I am trying to keep my excitement under control.
From what I can gather after researching MILLIONS of forums is that the longer you leave it before putting it under stress the stronger it will be. As it happens I will not be able to do any work on the bass until Tuesday or Wednesday, so that will be the test for me. I will try and start sanding it back then and I will see how well it has bonded. But I am cautiously optimistic at this stage.
I haven't included any photos or details at this stage as it might be a bit premature if it all goes belly up. If all goes well next week I will start detailing my experience then.