Wok: Carbon steel or cast iron? I LOVE stirfrying (I probably do it 4 times a week) and I want to take it to the next level (or 2). I am going to get this burner to cook my stirfry's out on the patio.

I am wondering if I should also get a cast iron wok, or should I just stick with the carbon steel that I have been using?
I have friends from Hong Kong who always use steel woks in their take-away.

A cast-iron wok would require a different technique for stir frying. It would be slower to heat up and retain heat when you didn't want the food to continue cooking. 

Stick with the one you have ...