So, the question has been asked, what about using 1/76 scale decals on 1/72 scale models; will they look ok? In most cases, there really shouldn't be any problem mixing and matching decals on models in either scale. The size difference is roughly about 5% between the two scales.
To get an idea of the magnitude of difference lets look at an example: a 'standard' British Arm of Service marking which is 8½" x 9½" (width x height) in full size (215.9mm x 241.3mm).
- In 1/76 scale this will be a 2.84mm x 3.18mm rectangle.
- In 1/72 scale this is a 3.00mm x 3.35mm rectangle.
- So the difference is 0.16mm x 0.17mm (w x h) - or about the thickness of two sheets of paper!
So, if you've got really good eyes.....I mean really good....and can pick out 0.1-0.2mm size difference from a typical viewing distance (several feet away), then you're a better man then me. Obviously, as the marking gets larger the size difference will increase, proportionately, ie by about 5%.
Another consideration with marking sizes is the word 'standard'. What is the 'Standard' size? While some countries had published 'Official' marking standards, others had nothing. So how would one know if the standard was even adhered to, with regard to marking sizes. I suppose when it came to factory applied markings, one could 'presume' these would likely follow the 'standard'. However for markings applied 'in the field', I would venture to say standards went out the window pretty quickly since the average soldier who is getting shot at, couldn't care less about standard marking sizes. Especially if things were going badly at that particular point in time.
Another consideration is the accuracy of the vehicle that the markings are being applied. Did the manufacturer faithfully recreate the miniature, ie is the model size correct? I know of a number of models that are labeled at 1/72 but are actually closer to 1/76, and vice versa. Even worse maybe only some dimensions are accurate.
Personally, I don't think many people will notice whether your markings are 1/76 or 1/72, since I think the difference is negligible. But I'm sure there are some that will vehemently argue against me on this point. Actually, I suppose the smart thing to have done would have been to create them at 1/74 scale so they would be right in the middle.........but I just imagine the screams from the purists and rivet counters!!
Well, you have my thoughts on this, but really its up to you, the modeler, to decide what suits your fancy.