Yea around the 12 hour mark I think I was becoming delirious. I think I will try a simpler rub next time and I actually forgot to put the brown sugar on like the rub I used called for haha. As far as slicing goes I forgot to pay attention to which way the grain was running before I spiced it so Im not sure. I'll be sure to do some more reading about slicing before my next brisket.
Read some of Bearcarver's brisket posts. He has a trick to finding the grain after the thing get's all barked up. I think he makes a cut across the grain before smoking for later reference. I might have to see if I can find that again.