>I ask this because of privacy issues, I do my hanging at work in my office.<
Wow, I hope you own the company. And keep the door locked.
>This wierd stretch is when standing, hanging straight down BTC<
If you hang straight out while sitting, that is about 90 degrees or 9:00 o’clock. Straight down while standing is 180 degrees or 6:00 o’clock. BTC is done while sitting and is 270 degrees or 3:00 o’clock.
I have not hung much at all while standing, so I really can’t comment. Maybe someone else will know.
>Is it ok to do a set then wait 1 - 2 hrs before going on to another set? <
Sure, it might even be better. The total amount of time (up to a point) and the weight seem to be the best judge of gains.