The first practice did go well. We scrimmaged sevens for 3 hours with a few minutes break between games. You guys were right I can keep up pretty well fitness wise, but skill is another story. I got called off sides 4 times, knocked on several times, and once threw what I thought was a legit pass but ended up going forward.
They don't have a full B side so showing up put me on the team. But the coach doesn't know where he wants me to play until I go through a few more practices (with cleats instead of slick trainers) and do some skill work.