For all the hullabaloo surrounding these uber no ML rings they break REALLY quickly and OFTEN being Hardness of "2" Gold ffs.
Only farmed a couple, lost interest quickly and the one no ML +3 Charisma ring of Power IV breaks/takes damage first of all my gear all the time in every quest and is pretty much junk to be crafted on (being BTA is its only saving grace and that marginal due to the ease of getting BTA gear in Lowbie Market Quests).
Even the No ML GFL ring my guildy pulled is just so much junk given the speed and frequency it breaks.
So yeah they seemed UBERESTEST NO ML UBER AWESOME RINGS with hardness/durability lower than a wet napkin.