Brisket is the hardest BBQ cook to master. That's why we are so in awe of Franklin. So, don't fret that yours didn't come out as good as his. Mine rarely do either and I copy his technique to the letter. He's just got the magic touch.
Couple of thoughts - 5 hours is quite a while to hold, but shouldn't have dried it out if tightly wrapped in foil/blanketed in cooler. Franklin uses Prime cut, so he can get away with trimming off most of the fat cap. I usually have Choice, so I leave more fat on mine. 185F was a tad late to wrap in the butcher paper. My money is on that one for causing your meat to come out dry. The goal is to catch it just coming out of the stall (165F - 170F). Not sure that the basting helped at that point.