Thanks for the compliments and the points!
@SmokinAl - yes, my very first brisket, but I have been reading, reading, and reading some more, plus learning my WSM by smoking pork butts, chickens, turkey breast, and pork loin.
I also expect that the success is due in part to the really great piece of meat (Prime instead of Choice). We actually bought it from Costco some months back but have kept it frozen until now because I didn't want to waste it. Had it been Choice (or maybe worse yet, Walmart special), I probably wouldn't have had as much wiggle room for imperfect timing and method.
Something I did different this time that I think also contributed was using the "fuse" or "C" method instead of modified Minion. The temperature was significantly more stable than I've been able to get out of the modified Minion.
Next smoking project will be 3 whole chickens stuffed with kielbasa, a turkey breast (stuffed with who knows what at this point), and at least one pork loin -- all smoked over apple. If I have enough room, I'm going to try out some bacon wrapped brats.