A couple things of note. Stir it very well, because it can be rather lumpy. If you're flame drying, do so very slowly, especially if it has thick spots like on a vessel mandrel...else it will crack and flake off. When you preheat the mandrel before using, you will probably notice a distinct smell (even with good ventilation), it reminds me of sparklers during the 4th of July. I don't mind it, but it may bother other folks.
Another thing, which I do find annoying, is when you clean the release from your mandrels and beads, it makes muck out of the bead bucket. If you don't keep all your unclean beads soaking in a bucket for cleaning, then it won't be a problem. I have no access to running water down in my studio, so I try to clean dozens of beads in one go. Very difficult to do with this bead release. It clouds the water quickly and leaves a "silt" on the rest of the beads.
With Dip-N-Go Sludge though, beads come off the mandrel VERY easily. Super easy, like...maybe my rivet tool can start collecting dust. It cleans out easily with a dremel, so you're not sitting there all day trying to clean out every last bit of release.
For now, that is my testing. I have a couple more I would like to try and compare, next time I am low. Frantz new Universal Bead Release and Foster Fire. If there's a bead release you're curious about, let me know and I can add it too my list.