After running tubeless three years, I think I have tried all the different sealant types. My unscientific conclusion, if the main goal is flat protection, stan's is the best. Unfortunately, it dries up and thus builds up in the tire. To get at this problem, I have heard all kind of homemade combinations of the different tubeless product to get at a best brew of flat protection plus longevity. The latest sounded interesting superjuice with glitter. The theory is that the glitter provide better sealing protection. This sounded like little bit of a stretch to me, but at least if it came spewing out on you during a race, you would be looking good! Anybody want to throw out their experience in coming up with the "ultimate" homemade sealant brew for the rest of us to try?