Keep going Paddy! I always enjoy watching you do your magic on a stubborn subject.
That is why I am still working on my sFH18 project. Halfway through I was looking at the items on it that were just way wrong and talking to myself about "does it really matter?". Eventually my answer was "To me, yes it matters as I 'can' FIX it.". Now that I have one of the trails done (they were the major offenders) and see how much of a difference it made that "I can see", I am happy with the fact I went ahead and did the work. Plus there were a number of items that just would not work as they were supposed to, depending on how it is displayed. Transport mode had some major issues with the limber and the gun locks as well as how the spades mounted. The deployed mode had issues with the spades, and details that would "mount" on the spades when deployed.
In both instances it turns out there were major issues with easily seen details that are easily visible in either display mode. So I pondered the problems and just started fixing them. With every fix and repair, I felt a "LOT" better about doing a good job on it.