Hi Humble,
Would you ever consider running your own trial with NLS Ick Shield? It is a product of questionable purity and certainly not pharmaceutical grade. But maybe it's still good enough if dosed higher than recommended, for example? It sure is easy to access, and if someone could show that when optimally dosed it is very effective, this would save a lot of hobbyists a world of headache. Since it is sold by a mainstream company in this business, there is at least a chance that there is consistency in its makeup, as opposed to CP from "the Ebay guy," who for all you know is selling you a bag of crushed up painkillers. [emoji14]
Just a thought.