You've still got Baktria vs Saka and Pahlava vs Hayasdan to test. As for the results, I'm not surprised. I've found that many times the stats that you see rarely tell the whole story of a unit's effectiveness. I maintain that the speed of the attack and/or the animation has a very large effect on combat results, or at least larger than anticipated. If the stats are wildly disproportionate (elite cav vs skirmishers, say) then it won't really affect the result but for units of similar quality it can really influence things. Also, as I'm sure many have noticed, the denseness of the formation is a big factor as well. I know the Pahalva FMs are in a very tight formation but I'm not sure about the others. Personally I see no need to give the Pahlava FMs an AP weapon since their big sword is a fast attacker. Also, if the FMs are in human hands they generally will have many chevrons. I know my campaigning FMs had something like 45 armor all told after heavy xp gains, which for all intents and purposes made my guys invulnerable. i think concentrated slinger fire was the only thing that inflicted undue casualties on them (in 1.1). Since slinger stats have been reduced for 1.2 I'm not sure even that would dent them.