Not on a blazer, but on the dodge dokatas we have at work, they have Line-x in the bed. Its good stuff. Nothing moves around in the bed. It can, if you throw something really heavy in there really hard, like a full tool box on its corner, chip up the liner though. But, all you have to do is take it back and they should fix it free of charge. In my personal truck (02 silverado), I have Rhino Lining. I couldn't be happier with it. I have had absolultely zero problems out it. It has the same no slide quality of Line-X. I've noticed that the Line-X seems to be harder than the Rhino. Don't know why though. They are both great when it comes to spilling stuff on them, like gas or battery acid. Didn't affect either one. I know that doesn't directly answer your question, but I hope it helps.
Kris