I may be weird, but I usually don’t worry variations from different ship design systems. As long as it’s legal in the system it was designed with, it’s good enough for me. I just chalk it up to deviations from different shipyards.
So I’ll use anything from Classic Traveller to T5 to Cepheus. In the end the only real difference is a few MCr here or there.
@deinol I’m totally cool with that! It just so happens that I like tinkering with that stuff for fun, but I don’t think it’s a requirement at all. I think most players won’t notice?