@TMThomas__ He will probably run a 4.5-4.6 if I had to guess. I'd be pretty surprised if he went in the early-mid first round with how much talent there is at more premium positions.
I would consider Dart a reckless runner. I think there are times where he can easily avoid unnecessary contact and chooses not to. I also think Mestemaker has a larger frame and could definitely fill out a bit if he wanted to in order to become more durable. He honestly reminds me a lot of Allen in terms of his stature. Maybe a bit like Maye as well. Not nearly as quick as Dart is.
@jahmyrgibbsfan Lacks arm strength which puts me off him a bit as a first rounder. I really haven't watched enough of him personally though to have a strong opinion about where he should go.