Congrats on your results so far, and congrats on "converting" your daughter, too! SB Diet is similar in principle (regarding glycemic control) but IMO lacks structure.
Just wanted to share that I also chose the Zone for those same reasons, weight loss and prevention of diabetes. When I started the Zone years ago, no one else in my family has had diabetes, but my mom has developed type 2 DM recently (she is in her 70's). I have tried to convert her, but she just won't give up her "staples", so her diet is high in starchy carbs.
As for me, I had gestational diabetes with all of my pregnancies, and so I am at a higher risk of developing type 2 DM myself. The Zone has helped me to keep my blood sugars under control, as my fasting sugars DO creep up above normal when I am not adhering to strict zone guidelines.
BTW, I am not from Alaska, I live in Wisconsin.