Throwing is a lot harder than it looks. By the end of the day I was mostly able to do it without falling down, but I still ended up with some good bruises on my knees the next morning.
Sweeping without hitting the rock is easier than I would have thought. Sweeping and having it do anything is a lot harder. You really have to push.
Aiming is very hard. One of those was mine, but that was the only decent shot I made. (As you can see, Elan wasn't happy.)
It was fun! It has a nice, sedate pace, with lots of strategizing, and it's actually a pretty good (cardio) workout. Brad is talking about putting together a CS team for next year. I might be able to be talked into that.