Coming out of years of lurkdom to say I'm in the same boat as you. Ginger requested my full on May 7. Because she usually responds so quickly, under a month most of the time, and because I had been having e-mail problems, I contacted her assistant 6 weeks later to make sure they had received the manuscript.
Got a very kind response that no, they had not, and I re-sent. Had to re-send one more time before Ginger personally e-mailed me to tell me they had finally got it. Again, she was super nice and told me it'd probably be 3 weeks before she could get around to reading it.
After that, I never heard from her. I did check in a couple of months later and didn't get a reply, so being a writer, I assumed she must've really, REALLY hated my manuscript. I had visions of her turning the pages into paper airplanes, maybe burning it in a giant bonfire and roasting marshmallows over it.
But the less dramatic explanation is that she's totally swamped with work/life so manuscript-reading fell to the wayside. Also, she has a new assistant now so that probably didn't help matters either.
My long-winded point is that in all my interactions with Ginger, she's always been exceptionally kind and understanding. You've been waiting for a response for 6 months when she said she'd get back to you in under a month. E-mail her and ask for an update. If she really loves your manuscript, a nudge after so long isn't going to make her turn you down. If she says she's too busy to read it, then at least you'll have closure and can move on.