So what's your work flow?
I'm doing basketball and I'm finding the thing awkward to use. I started out marking out points then <ALT><GoToIn> but find that he key strokes are awkward and that jumping back four seconds at once is disorienting, making it difficult to figure out where I am in the play. So I've switched to just hitting stop then -2 twice or thrice. This works better but doesn't leave a highlights "trail" in the playlist.
I think I'm going to build some macros for an xkey pad and leave the 3Play controller at home.