Not domey but not flat. Looking at infinite right now, unless I got a couple oddballs all of their Star TBs are similar. I remember checking PLH vs the beat star I was retiring from my bag that took a year of abuse to not be maga-beef and these didn't seem much different. The stars have gotten squirrely in the wind a few times, but could have been too much wind but was probably just me.
The recent MF seem less stable than the older as well. I bought one as back-up to my favorite TB and not at all like what I had. My favorite started super beefy and beat in to straight to fade OS. It may just be more TB3 like I guess but it LOVED a headwind. I could swear that disc flew further in a decent headwind than it did in calm. Lost it and couldn't find another MF to fly like that. The newer ones, larger, fewer flakes, not the same, and definitely less flat. The most recent MF I picked up was at a tournament early spring at I lost it when it turned over into a headwind. That last one was pretty domey though.
I picked up a Luster TB off Ebay and a couple Luster TB3 from infinite recently and I personally can't tell the difference between them. Look/feel/flight. They are right now starting off just like I was hoping/expecting the new stars to fly. I really like the grip/feel of the luster plastic.
Oh, and I guess since i'm rambling all things my Teebirds... the Pro TBs I have ARE pretty domey like just about all the Pro drivers i've tried. (not a huge number though).