It does make a real difference who you're training with though. I ended up with a bigger, bulkier, younger, newer guy this week, who seemed a bit uncomfortable grappling with a girl. I could tell that he wasn't working the moves on me the same as he would've with another guy. Even though I told him a few times to crank it up, he seemed to be trying way too hard to be careful. Halfway through the class they switched it up and the instructor said to find someone in the same size range, which I'm betting was a relief for him. Of course, I was the last one to pair up and the only one left at that point was Trek, one of the biggest guys at the gym. Luckily, he was happy enough to be partnered with me since he was actually recovering from a bruised rib and didn't particularly need 200+ lbs pushing down on him.
For the last part of class, Spaceman - from last week - offered to work with me again, which surprised me because one would think he'd want to train with someone who knows more than a fucking leg lock. But I loved working with him because he didn't treat me any differently as a girl and had no qualms about getting into full contact, using his weight (I swear the first guy was using his hands to hold himself up the whole time; he seemed to think I might be uncomfortable with getting too close and/or that I'd break in half) and actually making me work to get the move down, helping me when I didn't do it right. I definitely need to find more guys in the class like him, who pick up on things quickly and who are going to seriously push me to get it right as well. But everyone at this place is very friendly and supportive, and makes it fun regardless of how much you do (or, in my case, don't) know.