I haven't quite figured out the best way for me to shoot softball. 400mm, 300mm, converter or no converter. I've tried all of them and they've all had their pros and cons. Today I shot with the 3 w/ a converter along with the ole' trusty 70-200. It was alot of fun but I'll admit my lower back was killing me after hand-holding that 3 for so long. Anyways here's a couple of my favs, also put up a slideshow on Standard net. Oh and if anyone knows that really cool older gent at all these games lemme know, I can't ever remember his name yet he knows mine. Drives me nuts! lol. Happy shooting!