JMO but it's so much easier and cost effective to just buy it straight from Allan. Specially if you decide that the concoction is not for you, you only spent $40 instead of possibly a few hundred for some bottles that you may never use again.
My experience so far; I've used it 4 times in the last month or so. I do not get the crazy pe and filaments that I see here. However, my sps do not have much daytime pe so maybe it will take some more feedings with the concoction. As well, my tank could be considered lightly stocked (until my frags grow up). I do have some larger lps and a fairly big stylophora and monti. I have vermitid and aptasia which I'm sure really like the concoction so I am monitoring these.