Adam,

Where(ish) were your fills? I got bad 32% Nitrox fills in PCB two weeks ago and the taste is still lingering so I might have to get 'em cleaned. I alerted the shop and they were good and helpful about taking care of it and giving me free re-fills when I was over there yesterday. A few people think it might have been "oil that got past the filter."

I took the bad fills to CE by Peacock Springs and they drained the tanks and looked inside; everything looked clean. The taste still lingers though, very subtly.