I just want to mention that your setup depends on your scouters as well as your strategy, drivers and robot. For instance, 1511 are scouting gods. Check out their full setup sometime, it'll blow your mind. But they've got a lot of experience in it and can get valuable information out of qualitative answers.
Some teams (mine for instance) are still building their scouting base and don't have anywhere near as experienced observers. Thus I tend to lean my scouters towards more quantitative metrics to help with comparison. That's not to say the quantitative equates to inexperience, of course. (If you believe that, you need to meet a man named
Karthik.)
As far as format, my best advice is try it. Especially if you're not a week 1 competition, take your best guess and then try a dry run (with video and/or imagination). Be flexible, take feedback from both the scouters and driver team. Another one of those iterative processes.