I had always assumed at least a 10% discount vs the NH reported numbers on WTM.  However, at least for me, over the last couple days - they've been almost dead on, if not even slightly conservative.  Maybe WTM is doing their own internal adjustment, or NH rejects are way down?  (my TRM reported rejects *are* incredibly low - in the 0.1% range)

That being said, RVN is back to crushing NH/ethash at the moment, even w/ my rates.