My grandson starts football with game one on Sept. 5th. Middle school, 6th grade. I just ordered a monopod and wanted to ask about settings for fast-action sports. I was thinking I'd use shutter priority? Probably 500 minimum? I'll be using my 70-200L II and hopefully I can get some great shots for him and his mom and pop. Everything before now was on my old S3IS so it's a whole new ball game. Any other tips I can use? Thanks!