Sean.
Go for it!
I do almost all my shots, for street photography, with Pentax NII and Hassel 503 CXi, always handheld without problems, normally with Tmax 100 ,Tri X 320-400 and TMax 400, with a sunny day at 400 ISO 1/500 f11-16 and a 100 ISO 1/250 f8-11, the result almost always very goods. I do the shots with my Hassy without built-meter, my meter is a very cheap Sekonic L 308-B, and no problem. Hassy for street is a great machine.
With Pentax, I think, that I can do all sorts of Photography, sports included.
With your camera don't have any problems is OK
Sorry for my stinking English

Regards.