.......if i get my right wrist level--meaining being able to place a ruler down my forearm over the top of my outer thumb without alot of space visable in the edge of the ruler....
per 4-B-1 "The Wrist is LEVEL when the wrist-bone and the edge of the hand (to the first knuckle of the first finger) form a straight line."
So the ruler should go from the wrist to the first knuckle of your first finger, not the thumb.