Seriously though,
Has anyone made the obvious connection that the arc is the strongest possible shape. And, thus starting out stronger compared to the dog leg ones, the arms can be lighter for a given strength, which gives you more payload at the bucket?
/forums/images/graemlins/confused.gif
If this argument doesn't work, they are more streamlined! /forums/images/graemlins/cool.gif
BTW, good job on the photos, Bob. And be sure and give the young'un a big hug for the help.
phil