Been doing some math and came up with the following formula. This is for WHM not sure if same holds for SCH.

(WeaponDmg * (MND / 200) + (DET / 10)) * (POT / 100) * 1.3

1.3 is for Maim and Mend II.
POT = Potency of Skill
DET = Deterimination
MND = Mind

This results in the Average amount the heal will land for. This can vary by an unbalanced -2.5% to +3.5%

Tried this with a variety of combinations of gear at lvl 50 to spot-on results. A larger sample size would be great.

Thoughts?