Tralalalala, the Foebane + Equaliser pair still lost to the Foebane + Crom Faeyr all the way up till STR 24.
It only beats them at STR 25, but that is to be expected, since the STR 25 is what gives the Crom Faeyr the edge. If you want to base on this argument that the Equaliser is a better off-hand weapon, I will want to declare a mistrial and use the Purifier in the off-hand.
Besides... you have to REALLY cheese to get a natural stat of STR 25.