Girl drummers are quite rare. I personally don't know many and the ones I do, don't make it into my top numbers.
Bit of trivia on me. I met my Fiance when I was younger at a gig, she was the drummer for one of the bands we were playing with. She was one of the only Female drummers I've actually ever came in contact with. (She is now not a drummer)
No one can doubt the ability of a female drummer, or that they could play at the same standard as a Male drummer. I do believe there will be some disadvantage for a good majority of Female drummers. Metal Drumming is a stamina, power instrument. Naturally (Not all) males have got more of a powerful build,at least to start with. I'm guessing this can help?
I like some of what ICine is saying. I think Females in bands can be used as gimmicks, I also think its more beneficial having a Female at the front of the stage and especially singing. I believe they may enjoy this aspect more as well. This would explain not wanting to go near the back of the stage?
If I turned up to a show and there was a female drummer in another band, I'd probably imagine her being amazing. They are so rare, they can only be amazing if they are playing more seriously at a semipro/pro level. I'd most certainly be sticking around to see her.
Its nice to see someone so enthusiastic and interested though. I wish you all the luck.