There was also I Want You For Myself that was written for Everready. However they let it go on the Strange Noize disc.
I'm not really saying that Tech/Strange should release ISMs and make a big deal out of it. However I am saying that the material is there, it's there if they find themselves in a position where Tech's not able to do another album for a while, be it because he's helping put in work for the other artist's albums or whatever. They could release it much for the same reason they released Vintage Tech, "to tide the fans over."
Though, good music CAN be timeless. It's also a little strange that Tech has been making a big deal about "I write my life, every song I do has meaning to me" and shit like that, saying that he's not going to record 100 songs and then just select the best 21. How can you say something like that, then turn around and sit on material you've already got?
Let the shit go, you don't have to release it all together as a packaged "Leftover from Everready" album, start tossing tracks out there like they did I Want You For Myself. His fans want it, he's said at points that the fans will get it, so where they at?
Release the shit as a 5-6 song EP, downloadable for free from TheRealTechN9ne.com, old music or not, FREE will attract people and if the songs bring the usual "Tech N9ne Quality," then old or not, you might catch some new fans.