As somewhat alluded to, reverse banded movements differ from traditional banded movements in how they affect bar path. Normally, accommodating resistance with bands alters bar path to some degree. This might be good if you're trying to learn how to press in a straight line, for instance, but it can be a little bit stressful on some of your joints depending on how your groove is naturally. Traditional bands may also mask weak spots in a lift because of how they influence bar path. With reverse bands, bar path is not altered in the same way. However, it must be said that I don't say reverse bands are superior in every way. Again, traditional bands can be used as a teaching aid, and they do work for overloading the top as well, just in a different way.