[scottk_61]

The wide stance definately save the back and the knees.
I am 6' 5" and have used it with almost all batters down to age 10.
I do remember argueing that it looked dumb etc etc.
But it works, it is easier to keep your back straight in order to keep your upper body in a vertical position and there is actually less strain on your knees.
This is from someone who swore by the scissors stance for years.
It also allows you to get to a set position more quickly and with more stability once you practice it a little bit.

I know that I argued that it left me exposed to being hit by passed balls or wild pitches but when you are properly in the zone, you just don't get hit as much.
I too thought it looked goofy, but when you are going to do a lot of games, or take a lot of pitches in a game it is definately worth it.

Give it a try, over a few games and you will find that the small of your back is less tired (even though you may have thought yours didn't get tired before) and your legs will be less fatigued also.

I have to admit that at first I had a little problem getting up between pitches but you soon develop your own style that works well.
As for getting out to trail the BR or to clear on a passed ball you will be surprised how well you can move.