I do not normally have problem training with guys. The only one I have a problem with is my boyfriend, and I always lose my focus around him. We partner occasionally, but I'm running to Kieran for now so I can work on my control. I have practice close quarters with him, it was shameful how many times I cracked up (what can I say? In a few hours, we were going to go on a band trip and sit in the same seat!) There are only about three women in the advanced class, so I am rather used to training with guys. I've trained with guys all my life, whether it be T-ball or cross country (I just realized today the brown belt in our dojo is probably related to one of the boys I ran CC with... Now THAT'S strange to me). My problem is not being string enough, compared to being afraid to hurt people. I know they can take it, I have problems getting up the power.