Not sure if controversial, but: listening to Quartz's Stand Up and Fight for the first time in forever, and is it just me or does this sound like it may have been influential on the early Trouble sound? It's not doom metal but there's still a bit of Sabbath in here, and more than that there's something just a little tricky/off-beat about some of these riffs (see the chorus of Circles for a big one) in the way that makes Trouble distinct, and even the vocals vaguely remind me of Eric Wagner, not as scratchy or anything but kinda desperate/whiny but in a good way. Like, if Trouble had an album from 1980 that was the prototype of Assassin and such, it would sound like this album. I've got to put this one on regular rotation, I always liked their first album a good bit, but never gave this one much of a chance. Even the recording/guitar tone is really beefy like Psalm 9.