Thanks for your input and response. So far, I've been one full month on the Zone, my weight has stayed the same scale wise, but bodyfat wise, I've already dropped 2% from 12 to 10%. My energy levels have been really even, and I don't feel tired at all in my workouts of running, biking, lifting, and soon, I'll start testing swimming out.
I try to go by the Zone requirements for each meal, taking the fish oil as well. I don't have the money to buy the spendy stuff, but I find that the caplets work well. I've stuck to these recommendations very well, only 2-3 meals which have been pretty 'off' but then I get right back into it. The time where I feel it the most, the benefit of it, is when I'm doing a Time Trial workout tape on my stationary bike. I really feel more focused and full of more energy to go. Its a heck of a workout, but I can't believe how much more focused I feel.
I'm partly doing the Zone due to its effects on mood and depression, and its helping out a lot with work-related issues and such. Being a trainer myself, its hard to get away from work with exercise, because I work around exercising my clients all day. But, I feel more mentally fresh and focused at work too, and in a lot better mood as well.
So far, so good, and I can't wait to see what happens 2-3 months from now. As far as any major adjustments, I may increase the carb intake after my workouts, but then stick to the rest of the Zone afterwards. That's about the only major thing I've noticed with making any changes.