Seeing as to how WW has little problems with group clearing, from my understanding, the rend bit will dramatically improve single target damage, right? Waste 2pc extends Rend to 15seconds, and increases it by 500%, and now Waste 6pc increase that total by 10,000%, and now with ambo’s, whatever that huge damage number is, gets applied instantly over 1 second, every (roughly) 1.5 - 2 second, since whirlwinding will apply rend after the old rend disappears.
WW should comfortably clear 110+ for most players now.
Equipping ambo’s instead of echoing fury in cube should also help with mindless t16 farming (since I notice my 90+ augmented WW barb which cleared 107 in S18 with 800+ paragon kills elites in t16 a tiny bit slower than my mostly-non-ancient UE DH).