Originally Posted by Shifty
I do, hate flats and they seem to help. You'll have to watch the valves, if the slime gets in the threads and is not cleaned the valve will be glued in place. Many punctures I've had go flat in the garage overnight, just the way I like it!
They are messy, be warned and keep a rag handy when dealing with them.
Sorry, the rest of your question. The tires I use are Armadillos, and I wore out 2 rear and 1 from last season from riding. When I took them off the belts were showing on outside, no problem on inside from slime. Your LBS may know more than I, they might also be full of chit, you can decide that one. I've used Slime brand for 4 years now, get them at REI, I'm sticking with them for now.