WHMs have half a case for stacking SS this patch (Primarily being that the gear shovels it down your throat regardless) and they actually get a little double dip on it with PoM.

As SCH? You need far too much of it to achieve anything remotely noticeable. Outside of fcob it doesn't really matter quite frankly, but once you start min maxing for T13 those Adlo crits really are a welcome sight!