I figured out a very underrated album to post here. Flotsam and Jetsam-Cuatro, which a lot of people didn't like very much. Sure it was not the thrash people loved from them but the music was heavy and very melodic. Besides a large majority of the thrash bands did this kind of thing at the time: Metallica-The Black Album (even though they sold out afterwards), Testament-The Ritual, and Overkill-I Hear Black. Favorite tracks are Hypodermic Midnight Snack, Double Zero, and Natural Enemies.