Been wooting a long time, but have only recently (last few weeks) started reading the forums.
I wear an ML, and my girlfriend wears the WL. I was, frankly, rather surprised that the WL was the best fit for her, b/c I consider her pretty tiny (and this isn't just b/c I'm kissing up to her--she's more likely to cure cancer than start reading t-shirt forums on teh internets).
It seems like tall women (my gf is only five feet flat, which is probably why she's able to fit in the available sizes) of any real bust size are going to be hard-pressed to fit in the WXLs, especially after the notorious "woot shrinkage" in the wash.
The fact that woot carries men's sizes in up to THREE XL (and seriously, that will fit a pretty big dude--I'm 6 feet tall, 195 lbs, and the ML fits fine on me) but they can't carry even the women's double xl is just blatant sexism.
shirt.woot, I love you guys, but fix this. If you didn't carry such large men's sizes, I would say fine, both men and women are being treated equally, but this just reflects poorly on what is an otherwise great site.
I urge all women (and men), whatever your size, to add to this thread and make your voices heard: Size parity for the sexes!
Oh, and since I know someone out there will tell women to just purchase the men's sizes--that's male (the woot filter on that is hilariously appropriate). I wouldn't wear a woman's shirt, and neither would most other men; there's no reason in the world women should have to wear a man's shirt for lack of options.