ok then to answer the original question .
Hide glue is sold by the manufacturer (can't name them ) by it's strength measured in jelly grams .Weaker glue is cheaper .The weakest glue they sell is listed at 80 jelly grams ,the strongest at 512 jelly grams .I have no idea if anyone lists the jelly gram numbers for knox , but I do know archery supply places don't post the batch strength of the glue they resell .
This leads me to believe most suppliers carry glue much closer to the 80 jelly gram rating ,than the much higher 512 jelly gram rating .This could easily explain knox's current good reputation as glue. I have bought the 512 jelly gram glue direct myself (he told me he sold very little of it) and it is much stronger than most hide glue I've used .The batch of 512 jelly gram glue I got is very close to well made ,homemade hide glue ,and will crackle glass.
Ralph