In the MLB "Home Run Derby" the other night, I didn't see ANYONE with a "top of the backswing" position that didn't look "arm separated."
Why?
So you have more to PULL ON.
And PULL INto position.
Spot on Brian...and basically the same for golf...when you say PULL ON, I would say THROW WITH..
Maybe a warning should be made about trying to emulate your favourite player etc....there are physiological issues that factor in her, regarding the right arm top position, relative to right elbow away (from right side) and right elbow close, at the top...
For example, anyone remember Mike Dunaway, who had his own golf TV show in Arkansas? He is a big guy with big shoulders, but SHORT arms....at the top his right upper arm is naturally close to his right side (and closer to his left elbow), with his left arm fully extended..
In comparison, a player with narrow shoulders and long arms will have their right elbow much further away from their right side (and left elbow) at the top.....
In both cases I am, assuming as much humerus bone extension at the top, ie. nearly in line with the shoulderline...
Therefore you need to find you own "best" position, which alllows you to put your right arm in a proper thowing position at the top, and it may not neccessarily look like anyone elses...