I think knowing is one aspect - when I tried it, I felt a bit of a fraud plus it didn’t look right to my memory’s eye so never did it again but that’s a personal thing.
However when I look at photos I tend to see the lack of sky graduation (the remnants of art classes where the teacher lambasted one if your “sky” was too constant) or the view through the canopy glass, which to me is the biggest give away especially when it’s a bubble canopy.














