This actually sounds like a good idea, @Drmeh_Orangescope.
While, it would be a small and well-appreciated feature should SCS choose to add it in; I don't think that it will happen anytime very soon as players still can make their favorite costume combinations. Even if it's at the expense of a few more seconds. You have to remember, SCS is already really busy with Episode 4 and other things, and I'm not sure that they'd spend hours working on something that'll save seconds for only a handful of people.
Other than that, I think that the idea itself is really cool. Just not probably at this point. @Goku_Ironheart might think different though. I'm not sure.
Anyways, those are just my thoughts.