Heavy Strike low accuracy problem

[Defiledsickness]

no worries i already have that down http://www.ffxiah.com/item-sets/207901

for spell dmg is this formula right?

bluskill x 0.11
x2 (3 during efflux)
+3 = D (spells base dmg)

i dont understand floor i guess;
floor (floor(A x A%) + (B x B%)) x a
a = level reduction

so for HS just use (Str x .75) x a

then its
D + fSTR + floor (fStr being your str-mobs vit)