the "problem" I have with sourwood in mead is it is my favorite honey for eating. So delicious. Spices, caramel, and buttery.
But it does make tasty mead. I wouldn't recommend it for some of the intense fruit bombs, though I keep making them anyway.
I only make semi or sweet with it. I don't feel like enough sourwood character comes through when dry to make it worth the cost. YMMV.