Ok, I gotta vent a little bit about this. Some might disagree.
This seems like an unhealthy amount of gloating. Skipja?k posted clips on a Springsteen collectors board, where an unreleased show is like catnip. Nothing in there about plans for release, just a "hey I've got something cool, check it out, I'm so connected to ubers, let's all talk about it." It seems mean to me.
To make things worse, I don't get the sense that you're the taper. Just a dude that either got the recordings from somebody else, and now you're announcing it to a bunch of other collectors. Now that the "mystery" for Promise soundcheck is done, you post another one. Which is decidely a very average sounding IEM/AUD mix. Beyond gloating, what's the reasonable motivation for all this?
Personally, I have a bunch of unreleased stuff. I generally don't talk about it on here. I made an off-head remark at one point about some unreleased 2003 IEMs I had at one point, and several people asked me for copies. I don't really have issues with sharing, but I would want it mixed. It still remains unshared because nobody is willing to do the mixing of it. Generally speaking, I don't really talk about any of buried stuff in my closet on this board unless I have some sort of release plan, or if there's a general need to share the information (like soundcheck information).
Anyways, I made some assumptions (you're not the taper, you have no release plans, etc.). If any of those are incorrect, I'll eat my words and apologize. But all told, this seems a bit mean spirited attempt at taunting a bunch of collectors.