Thanks very much indeed chaps, glad you approve.
That bl*dy stress crack is all due to the very heavy sprue attachment points. I removed the windscreen from the sprue complete with the large lugs shown in the previous photo, to reduce any possibility of the screen cracking. But, due, I'm guessing, to the continued curve of the screen, beyond the 'half way mark', when I started to cut the off the lugs, I heard that horrible 'creak' noise, as the clear part stressed and crazed.
Hopefully, once coated in future, the crack will not be as visible. The really annoying thing is, that even with the central mould lines removed, it's still possible, under close inspection, to see the ridge, as the canopy shape actually comes to a peak!
I suppose there is a valid reason for moulding parts this way, possibly tool costs, but surely it should be possible to do so without that bl**dy seam! After all, the original price for this kit (from Hasegawa) was £40 !! - a heck of a lot for what you get, even though it's a nice kit.
Rant over, back to the work bench!