Virtual Gun array settings?

Intuitively when you put two similar guns, it's hard for the VG to actually differentiate between the two. On the other hand, when you have two totally different guns against a learner, you are on the case that when you are scoring your secondary gun, he is actually reacting to your primary gun, and if they are really different the hit rate may not be so meaningful.

Anyway, most of the top bots today use a simple VG array based on hit rate, so their authors must have experimented more with the weighting schemes than with the strategy of picking the best gun.