I also use an Akorn. I don't use a water pan or wrap in foil. I do put a pan under the butts to catch grease. I get an nice color on mine. You may want to try a higher temp at the end of the cook.
Team: Pyle's BBQ; Yoder YS640; Good-One "Trail Boss" 60T; Weber Kettle w/rotisserie ring; Big A$$ Rotisserie; Weber OTS; New Braunfels offset smoker.
Saddles BBQ Bistro