I used to represent polearms by Dashing in SoBH too, then I tried using Tailslap instead (with worse results, of course), then I used my own rule "if won attack in melee, C+2 and then recalculate", now I give them Heavy Weapon (and maybe I'll add some limited form of Long Weapon to it too).
And btw., C+1 is not the same as enemy's C-1, is it?
