the actual benefit of EXP is that any one of the cr2s can act as the primary as they all load with all the blank channels that have been installed, so any one of them can be loaded with any morph of the others (the females and males are of course separate but even the opposite sexes can load the other's morphs with a bit of file editing). As far as what figures you need in your figures library, all you actually need are V4.2 and M4, those figures will load all the morphs for the others. the only thing that A4, G4, H4, and F4 give you is figures that automatically load their own morphs and have their primary morph set to 100%,