I use the Cookina all the time in the barbeque. It works awesome. I used the same sheet all summer long on a daily basis. Nothing sticks, and it so easy to clean. I highly recommend it. The only question I have is why are there different colors? They all worked the same. The same temperature in the barbeque as the oven.
I didn't realize there were so many kinds. They should all be interchangeable. Maybe you could put the reason on the packaging as none of my friends know there is a difference.
These sheets save a lot of money from buying aluminum foil or parchment paper for your easy cleanup. These clean up so easy and fast.
Bottom Line: Yes, I would recommend this to a friend