Don't think I can make it, but sounds like some tasty stuff will be had: http://www.spokane7.com/blog/2015/nov/14/rolling-them-out/
Iron Goat did a collaboration a couple months ago called Tower of Sour. It was quite good, barrel aged I believe, and it had a good bit of funk to it. Tasted like something from Cascade a few years ago.
This is their second one, right? I think the reason I've not gone is due to them being on Sunday nights. Unless I plan and took the monday off, I don't think I'd be productive the following day.
Knowing I was busy that weekend, I didn't look too closely at the date and time. Though I currently have Mondays off, for most people Sunday's a kinda silly time for mass beer consumption. I'm curious why they do it on Sundays.