Very thorough first report, can't wait to hear how your back workout goes and if you notice any sleep disorder or anything after the next usage.
Respect,
Shukin
"A warrior chooses a path with heart, any path with heart, and follows it; and then he rejoices and laughs. He knows because he sees that his life will be over altogether too soon. He sees that nothing is more important than anything else.” - Carlos Castaneda
"Nothing will destroy a lifter faster, or for longer, than ego." - Jim Wendler