I originally had my lower arm facing the opposite of what Ben was showing in the lectures. After making the stem and lower arm bones and checking the rotation to see it, I set the lower arm to face the opposite way so it looked the same compared to the one in the lecture. I then set that view to be my rest view. That worked fine. But when I went into constraining my bones the lower arm bone uses different rotation angle limits than what was shown in the lecture. Actually the limits are exactly reversed for the minimum and maximum movements. The upper arm worked just fine and the constraints work the same as in the lecture.
Do I need to redo everything with the lower arm facing the correct way before adding bones or will my set up work ok.
Here is a picture:
