I inject my butts with Apple Juice, a little vinegar and some rub all mixed up. I guess I put about 2 cups of injection in.
Right before I wrap it at 170 IT, I pour some of the drippings into the foil and back on til 205 or so. wrap it in a towel, into the cooler and a few hours later... Pull, Eat and repeat!!!
Looks grate to me!!