Back to the bench - over the weekend, I've been using Ibuprofen Gel on my wrist, and it has worked pretty well, it's a bit stiff, but the pain has just about gone.
Rather than jumping straight back in with the tracks, I assembled the gun - the muzzle brake is dry fitted, as you can't fit it though the mantlet.....................Then I worked on the tracks. I've completed one side, but I managed to snap off one of the return rollers on the other side. I've had to use the CA to repair this, and I'm going to leave until tomorrow, before adding the final track length.
It's very fiddly, and tweezers are a must. It helps to remember to breathe now and then, when doing the really delicate bits!
Dave