* well at least they weren't defeats!
And then I got lazy and forgot to come back and post anything further

Another conclusion I have come to previously is that there was a brief period (relative to the whole of the period covered by the rules) in which heffalumps were genuinely scary, and battles revolved to some significant extent on efforts to explot that (if you had more or better of them), or counteract it with innovative equipment or tactics. But it seems at some point either the world ran out of elephants (clearly not true), they became somehow unfashionable (unlilely), or people stopped regarding them as elite weapon systems (much more lilely IMO).
So on that basis:
a) Using Sassanid accounts to justify how the combat should work in 2705bc is inherently flawed
b) Achieving a good representation of elephants in such an extended ruleset is always going to be tricky. Probably what we have is some sort of average effect, where many people complain elephants are not effective enough in their Helelnsitic era armies; whilst others complain they are too effective against Dominate Romans. I have no idea what could be done about that!