I always approach these rigged aircraft as being just one small step away from total disaster.
Well, no sooner did I say that than a major mistake identified by PrzemoL came to light. Luckily for me, he's been following my build and he noticed that I had painted the tailplane improperly by including a colour that wasn't actually there.

When you look at the colour scheme in the instruction booklet, you can see that I misinterpreted what must be a shadow from the rudder as being a camouflage colour.

In defence of WnW, there is no colour call-out for that colour patch and it overlaps the black patch, so hindsight being 20/20, now it jumps right out at me as a shadow. However, to simplify things for boobs like me, I'd prefer to see simple drawings which only show the camouflage colours so there's absolutely no doubt what is required.
There was nothing for it but to head back to the windshield washer dunk tank to strip off the finish and start all over again. Unfortunately though, it was just too much for my assistant Jenny.

This time I think I have it right and I'm ready to move forward again.

Thanks for taking the time to let me know about my mistake PrzemoL. It's not easy to bring a problem to the attention of another modeller but I sure do appreciate the fact that you did, as it enabled me to fix it before it was too late.
Cheers,
Chris