I am also not banded yet. I'm scheduled for this coming January, which is a while from now. I figured that I shouldn't wait until then to lose the weight from the band, so I started now. I'm doing low-carb because it worked great in the past(50lbs) and I felt healthy while doing it. As I see it, I can enjoy this weight loss while eating the things I like on this diet and I'll have less to lose with the band!

And I know I only have to do it until January and won't gain it back (like you said trystelle). The surgery is a great motivation to stick to my diet even when I'm bored with it.
I feel like my low-carb diet right now is practice for the band too. I can't have liquid calories like regular soda and ice cream and in general I'm controlling what I'm putting into my mouth as opposed to eating whatever I want.
I did practice the chewing, and man, it's so much chewing for 1 bite. After 2 bites I get annoyed with it and just go back to normal chewing. Maybe when surgery is a little closer, I'll do a practice run of shakes and slow chewing.
Trystelle- what were you doing that you lost 40lbs? Just chewing slower? Eating bandster sized portions with shakes? Or were you doing a diet?