Got this Grill for Father's Day, Love the 5 burners and rotisserie burner. Discovered that the smoker on Low runs around 300-320. Too high to smoke most meat, so I installed a needle valve in line with the burner. All I could find was 1/4 inch compression fitting needle valves, so I soldered the copper tubing directly to the needle valve because compression fittings aren't recommended for gas applications. I bent the tubing so that the handle of the needle valve would protrude through the rear vents on the BBQ and phlanged the ends. Now I am able to maintain temps under 200 or crank it to well over 300.