If you watch the video I attached with the post that started the thread you will see exactly what I did. I didn't deviate from the recipe or technique at all.
(Here is is again for those of you too lazy to scroll, the video is at the very top of the page)
Desi, the smoke flavor came from the brine (smoked salt, liquid aminos (soy sauce substitute) and liquid smoke). In addition to brineing it I liberally injected it with the brine solution. Then the glaze is smoky too, (liquid smoke, molasses, and liquid aminos), the rub itself has a nice smoked flavor, provided by the smoaked salt and smoked paprika.
If I served this to you without telling you about the cooking technique, the smoke ring (which is created by the addition of a Prague Salt solution) and the smoky flavor, 90 out of 100 people would guess it was smoked.
I'd say the advantage this has is that the cooking is absolutely even. Probably as close to perfection as possible.
As for "Fork tender", you are right, it was firm enough to uniformly slice (see pics) the proteins in the muscle weren't denatured enough to loose the bonds and turn it into mush, just enough so when you had a slice you could get through it with a fork without much effort, and the intramuscular fat was reduced to a creamy mouth feel.
Overall, it was a good amount of effort, and the ingredients were quite expensive, but the end product was a show stopper if you like brisket. I'd still say Franklin's BBQ is the best I've ever had, but this was damn close.