Originally Posted by
sandrawg 
If it were me, I would seriously refrain from trying to 'time his bottom.'
Some people have very very low bottoms.
True words. You'd be surprised how just when you're thinking to yourself, "gee, things just can't get any worse than THIS," well, they do. But more importantly, there's nothing to be gained by guessing the exact moment of "the bottom" and you'll only frustrate yourself if you keep trying to measure your situation against that immeasurable goal.
I once thought that my wife being involuntarily admitted on a psychiatric hold and being warned that she was at risk of losing custody of her baby
had to be the bottom. Sadly, she was still sliding downward.