Subplot Kudzu

I take it that you've figured out that in Tri-Stat a character's Body, Mind, and Soul should always add up to a multiple of 3, to get the optimal payoff in Combat Value? I nearly always did that in building NPCs, especially for my second BESM campaign, but I did start getting a "cookie cutter" feeling after a while, when nearly every character had X, X+N, X+2N or X, X, X+3N as stats.