I tried an injected brine recipe from another board yesterday. I only gave the brine about 8 hours before I started smoking a 9 lb butt so probably not long enough for it to work its magic. I started smoking it at 11pm at 160 degrees. At 8:30am I turned the temp up to 225. The IT was 138 at that time. Here is a pic at 12:30pm the next day after 13.5 hours of smoking. The IT was 167 at that time. 5.5 hours later I wrapped the pork up in foil and put it in the cooler. The IT was 201 at that time. Here are pics after it got an hour of rest before I started pulling it. All told I had 20 hours on this cook. 19 hours of smoking and 1 hour of "rest" in the cooler. I didn't wrap the butt in foil during smoking. The family loved it.