Phil, Bench only is ok when you are young and limber. But go to ground if you ever get old and stiff. The rolling around and straining is considered "old man yoga" Welcome:wink:
I know the feeling. That is the reason I don't work on cars or trucks anymore. I am a few more years ahead of you and no more floor crawling. I am getting out of the repairs more all the time seeing my back is starting to give out. Welcome to the forum..