Using Weapon bonuses to Combat Maneuvers

[Mystic Lemur]

I know ShadowChemosh has a Weapon CMB adjustment, but I can't quite get the math to come out right, especially when the character has Power Attack. I tried to come at the issue another way, and this is what I have so far. It seems to work well so far, although I know I'm missing things like Weapon Focus.

     ~if we're not active, just get out now
     doneif (field[pIsOn].value = 0)

     var bonus as number
     bonus = 0

	 ~Only bother with melee weapons
         foreach pick in hero where "wCategory.Melee"
            ~Only bother with "Equipped" weapons.
            if (eachpick.field[gIsEquip].value = 1) then
            ~set the bonus equal to the melee enhancement
	    bonus = maximum(eachpick.field[atmBonEnh].value, 0)
            ~apply the bonus to the Disarm, Sunder, and Trip maneuvers
	    #applybonus[cmbBonEnh, hero.child[manDisarm], bonus]
	    #applybonus[cmbBonEnh, hero.child[manSunder], bonus]
	    #applybonus[cmbBonEnh, hero.child[manTrip], bonus]
            ~If the APG is a valid source
	    doneif (hero.tagis[source.APGManeuv] = 0)
            ~and if the weapon has the Trip quality
            if (eachpick.tagis[wSpecial.Trip] <> 0) then
            ~apply the bonus to the Reposition and Drag maneuvers
            #applybonus[cmbBonEnh, hero.child[manReposit], bonus]
            #applybonus[cmbBonEnh, hero.child[manDrag], bonus]
            endif

	  ~if the weapon has the Disarm quality
          if (eachpick.tagis[wSpecial.Disarm] <> 0) then
          ~add +2 to Disarm combat maneuvers
          hero.child[manDisarm].field[cmbBonus].value += 2
	  endif
	  ~if the weapon has the Sunder quality
	  if (eachpick.tagis[wSpecial.Sunder] <> 0) then
	  ~add +2 to Sunder combat maneuvers
	  hero.child[manSunder].field[cmbBonus].value += 2
	  endif
	  ~if the weapon has the Trip quality
          if (eachpick.tagis[wSpecial.Trip] <> 0) then
         ~and the APG is a valid source
         doneif (hero.tagis[source.APGManeuv] = 0)
         ~add +2 to Drag and Reposition maneuvers
         hero.child[manReposit].field[cmbBonus].value += 2
         hero.child[manDrag].field[cmbBonus].value += 2
         endif
       endif
     nexteach

Any suggestions on how to improve this would be very much appreciated.