Was this LP supposed to include more unreleased stuff? UM has a lot of unreleased recordings they did in the late 80's and even early 90's, but this material is the more experimental side of the band that embraced the Hawkwind influences heavier than the hardcore side. Jay Fox told me that he feels there's no demand to hear that stuff.
Jay Fox did a CD version of "Fugitive Family" on a label he called Living Nightengale, this featured a song from one of their demos called "White Amerikkka" which was an awesome inclusion.
Here's a fun rehearsal video of Mainline DC. The vocalist is Sean who also did vocals in the Suspects and who currently holds onto all the DSI Records backstock, on drums is Kent Stax, bass is Jay from UM, guitar on the right is Mike Clayberg from Malefice who also ran DSI Records and on the left is possibly the guitarist from Black Market Baby? Doesn't totally look like him but he was in the band at some point.
https://www.youtube.com/watch?v=tc74xRlOivc