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This can apply not just to gender cross-overs, but among anyone who is bigger/stronger/more experienced. If your partner isn't letting you work techniques, he/she is a bad partner. Our instructor is quite good at teaching us to be good partners: to remove the ego from it... to not worry about "winning", but to concentrate on "learning".
I can out-size and out-muscle most of the people at my school. And, of course, there are those who can out-experience/out-technique me. It is incumbent to both sides to ease up and act as though it's a training school, not an olympic trial.