I had a friend cook wings on his smoker once and he kept saying they weren't done, they were pink inside. When I tried one, I laughed at him and said it was the smoke ring. They had been in the smoker for 3 hours at 250... He just needed to work on crisping up the skin. So not sure Spartan, but the pink you seen could have been the smoke ring.
The Pork Butts must have been really lean for them to be dry on the inside. Mine have never come out dry but they always have nice marbling/fat content. I hope it was actually a pork butt, not a pork loin roast.
Anyways, congrats of the new RT 700, mine gets here tmrw and I am making a list of what all I want to try on it.
Cheers,
SS