I ended up re-finishing this a while back and thought a quick update might interest some.
I rubbed back to remove all previous finish with alcohol and then a light buff and cleaned down to remove all traces of dust and oil from hands. Then following the cans directions I sprayed 3x light coats with less than 15min between coats. It went on easily, and was very easy to see application, but I did get quite a bit of fish eye in a few places which I'm happy to concede was probably operator error. Outside that I'm very happy with the finish, nice and clear without being super gloss to give off a flash in the sun.
So far it's held up very well to scratches, I don't baby my equipment and it's been dragged and pushed through thick scrub, lent on rocks etc. without showing any signs of wear or chips but it hasn't held up to constant rubbing. Both around the grip and where I've had to replace my clicker a couple of times and had to clean off old adhesive it has worn through back to the wood.
So not sure where to from here, I do like the ease of applying but if it keeps rubbing off like that I will have to think of an alternative.
Steve