I would say your smoke was too Heavy (Thick).
I made an UDS and did chicken last weekend and the legs came out way to smokey, I use lump coal and added a couple apple wood chunks, not the chips but the large chunks, smoked for about 2.5 hours and came out looking great but skin tasted like licking BBQ ash. To much smoke wrong temp? oh and fighting to keep a decent temp in UDS at this point, but then it is a home build and working out the kinks.
Those look really scrumptious! Nice!Leg quarters turned out delicious in my electric smoker today thanks to the forum members on this site for sharing their tips much appreciated.[emoji]128512[/emoji]