yeah i tried that... VERY tough!
after about 30 minutes of messing with it i decided on this one. in fact this one was otugh b/c of the 100mm lens. any little movement and the ball would be mostly out of the frame! took about 10 shots or so to get this one how it is... hehe
i got the caption from another member here , he recommended it in another thread i made a couple of weeks ago..
this was the pic i first took that got me interested in the idea...
thanks again