Thanks for your replies, Brian and Alan. We used a generous amount of pectic enzyme during primary fermentation. In the past, I've had excellent success using Super Kleer, which is composed of 2 pre-mixed pouches, kieselsol and chitosan and was hoping to avoid it due to the potential but unlikely chance of someone having an allergic reaction to the Chitosan. Thanks to your reminder that Bentonite is negatively charged and that the ongoing haze might require a positively charged agent, I discovered that Super Kleer is both -- negatively and positively charged. Hence the two pack, one-two punch. Here's more information on that. http://www.fallbright.com/newsfiningcoldst.htm
I'm wondering if anyone has ever used a combo of bentonite and Isinglass as another way to achieve a negative-positive 1-2 punch? (At least Isinglass has been approved by the Feds and the EU as a safe ingredient -- a status that I believe has not yet been granted to chitosan.)
Alan, I'm curious to learn if filtered before bottling when you used Sparkoloid? I read somewhere that it can leave a fine trace of sediment that shows up over time in the bottle if the wine has only been racked and not filtered. Was that your experience?