I wouldnt pull it any sooner than 203. It would be much tougher. I know its counter-intuitive, but if anything, to get more tenderness it needs more time at the higher heat levels to allow the collagen to break down more.
It doesnt look to be dried out any, so maybe you want to leave it unwrapped a while longer. I let mine go all the way through the stall before wrapping and it wasnt the least bit dried out except for the very tip of the flat, which is typical. I also cheated and sloshed some beef stock over it into the foil pouch when I wrapped it to help it braise better.
Also, check out some Brisket carving videos on YouTube. There is a correct direction to slice in (across the grain) to further improve the tenderness. My first couple of briskets I didnt get it right. Finally figured it out this last time. Its easier to see the grain if the rub is just salt and pepper. A heavy rub covers it up too much to see the striations.
Ill have to find myself some good priced flats to cook up once I get back on my feet. Im getting to the point where I dont want to cook only 3 - 4 lbs, so Ill have to get a couple. The leftovers are as good as the first eating. Used some this morning diced up with the home fried potatoes and onions.