shilala is no longer involved in it and it's a new guy that uses them. From my interactions with him he doesn't seem to be as knowledgeable about the product but the product is still good. I've been using the 8oz tube in a 50 qt cooler for a couple months now and i'm really happy with the results. HCM vs Heartfelt vs HCS (i'm not even sure what these are, they were just mentioned a couple times in that old thread) vs kittylitter is such a dead horse and with so much speculation. If we ever get a material scientist as a member in here I for one would gladly bomb the bejezus out of him if he could shed some light on this. haha either way use what you have if it works.