There's a route called Rock Naked- 5.8 R/X that Mr Mud did awhile back.
Loose, crude falling down as you go up, and he did it onsight, free solo.
Death wish imho.
I did Pillbox crack free solo the first time I climbed it, and at one point free solo'd The Cleft, Portent, the 5.6 on Upper Crust, and the First Sister too. Good times, but I don't make a habit of free soloing at the NM.
It's all spooky at Pinns if you're free soloing.