All induction cooking eyes are not created equal. Not all sellers are created equal.
For me, the NuWave seller has some problems with "shipping and handling" cost and "free" cookware, but the NuWave Pro cook eye is without equal today. There is a difference between the NuWave 2 and NuWave Pro. The Pro is well worth the difference in price.
I often use 8 quart pots and pressure cookers. There is absolutely no problem with the size of the cooking rings on these units with this cookware.
In addition, the controls for cooking temperatures and cooking times are in a world of their own. I don't like the fact that NuWave is made in China, but it is top of the line. Come on, give us a USE unit as good!
Good Luck!
Wil