To be honest, I feel a little awkward training with women on the whole, because it's a physical thing, and I'm afraid of touching er, heh... I feel childish as hell saying this
I'm old fashoined, ok? I'm really afraid of touching something I shouldn't as I'm grabbing her, or something.
Although I got over this to great effect at the start of aikijutsu. I kept punching to the side of a woman's head, afraid of hitting her (was the same with the guys, mind), and I was told by sensei "When she puts on that gi, she's not male or female, she's a martial artist" or words to that effect, along with "That's not a woman, it's just Angela", lol. Madem e realise, she's there to train too.
I wouldn't have a complaint about training under a female sensei, to me skill is more important. It's better ot have a skilled female sensei than, well, me