I just used the vortex for the first time this weekend to make chicken wings on my Weber, AMAZING! The wings came out very crispy(not burnt) but juicy and it take no time at all to grill them. The vortex will get my Weber up to or over 600 degrees depending if I use charcoal or lump. There are several ways you can use the vortex, but chicken and searing a steak will be the main use for mine. If you have never heard of it, I suggest looking into it, its a great accessory to anyone's grill.

http://www.owensbbq.com/vortex.html