Um, probably not! I just don't have the time to quadruple the comparisons (especially when you count compiling the videos, which actually takes longer than the playing part for the way I like to do them). Also, for my testing I think I need to be comfortable with the mouthpiece to feel like I am getting the best from each horn. Certainly some horns are more suited to a larger/smaller/deeper/shallower cup than others, so such a test would be helpful.
If it's any consolation, I'll be using the DC4 for my tests. That is slightly smaller and more focused than the 4AL.