I had three kids in Gears at Fairland last year; we're switching to the UMD site this year for scheduling reasons, and I'll have two in Gears and one in HP. Last year was my kids' first year in club/year-found swimming.
In our experience, it's not at all true that Machine is only interested in "stronger swimmers." The Gears programs are developmental in nature - none of the kids in them are superstars. That's not the point. My kids had fun and learned a lot. All three went to Divisionals and will go to All-Star relays (mid-level MCSL). Fairland is an easy drive from various points in Silver Spring. College Park isn't terrible, but the parking situation is meh.
I've heard good things about FAST at Fairland, too. Good luck, OP!