Originally Posted by Lakers4Life
I think he answered that in the first page. If the bar were to dip slightly below horizonal, 1.2 deg can be as high as 15 lbs.
If I understand correctly, extra tension only occurs when external force is added to the bar, such as dropping it or pushing on it. If the drop weight ends up past horizontal, but was lowered slowly then it is still fine. 5-10 degrees past horizontal would result in about 1 pound less tension.