I much prefer cooking my briskets at the higher end of the temp range, too. I've cooked hundreds of them at all temp ranges, wrapped, unwrapped, spritzed, injected, not injected, different woods, etc.
My favorite combination seems to be:
~275-300* cooking temp
Pecan & cherry wood
Injected
Rub that is heavy on pepper
Butcher paper wrap
I've done plenty at 350*+, too. The only downside is the window for getting it 'perfect' is pretty small, but if you nail it anyways, the result is excellent.
Nice job, OP. Brisket looks like it came out great.