Uses for Dutch Oven lid

I was wondering if anyone has used the lid of their DO as a pizza stone on their grill. Lodge states that their Camp DO lid can be flipped over and used as a griddle. I once bought a small pizza stone that worked well but it didn't hold up with the heat my patio grill puts out (the temp pegs out at 700 degrees). If i put my crust directly on the grill at 450 to 500 degrees a couple of spots on the bottom of the crust usually char a little. I'll probably pick up a DO soon especially if I can get dual use out of it and give it a try (or buy a lid when I run across a replacement lid for sale). I've been wanting to try a DO since reading some of your post anyway.