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; Good-One "Trail Boss" 60T; Homemade rig; 22" Weber Kettle w/rotisserie ring; Big A$$ Rotisserie; BGE-Small; Weber Kettle Gold, Weber OTS, New Braunfels offset smoker.
Saddles BBQ Bistro