The Cramps work like a palette cleanser or paint stripper- no matter what's going on, what you've been listening to or what's going through your head, they strip it all away, reduce it down to the bare bones. That's a good thing.
In 1979 they recorded some demos with Alex Chilton. Many people consider these songs to be superior versions to the ones that came out a year later on Songs The Lord Taught Us. This version of Mystery Plane sounds as good as they look in the picture above, also from 1979.