So many responses!
Thanks, folks, for your support. I went home and grilled burgers with the wife last night. Had a beer or three, and sat out on the porch, listening to the frogs. It was nice. I can’t say that I feel much better about my prospects today, but I’m plugging away. I think I’ll take the advice and go ahead with my quals.
Those who have guessed that my advisor leaves something to be desired are correct. True, I’m just sort of in his lab, without being directly connected to his research, but the guy is really pissing me off. He is extremely hands-off, which is good in a way, but when I need guidance in some way, he’s simply not there for me. During the above-referenced meeting I had with him yesterday, he waxed accusatory and angry that I hadn’t somehow magically gotten all my stuff perfect. “Well, why in the world didn’t you…?” and “I can’t believe you didn’t do…” Well, fuck, you clown. I guess you’re right. It’s not like I’m a complete noob at this shit, and am trying to feel my way through it WITHOUT ANY EXPERIENCE AT ALL.
He hasn’t been helpful at all. One of my other committee members has been fantastic, which makes me wish I’d been in his lab this entire time, but that ship has sailed.
At this point, I’m like a mountain climber at 25,000 feet. There’s nothing pleasant about it, and the wind is picking up, and I can hardly think because I’m so tired. They might find my frozen corpse on a ledge somewhere, but I can’t come back down without summiting. I just can’t.
From the tone of the response, which was back in Spring, I just don’t think they’re that interested.
Yeah, I actually shot them a request yesterday.
The process failed to return any data. There was no “null hypothesis” result. It simply didn’t work.
You’re always helpful, and I sincerely appreciate you. 
If I thought it would help, I’d enroll at UA so I could help keep Marcel Dareus on the team. 