That's a great amount of exercise--good for you!
I think that part of the problem may be that calorie burn calculators are, at best, a somewhat informed guess. And, how accurate are you being in your calorie intake? Intake and/or burn off to some extent can be the difference between losing and maintaining (or even worse, gaining).
From what I've learned, muscle weight comes on really slowly, though you could be retaining fluid due to your exercise.
I might consider cutting the cals back just a bit, and/or perhaps adding a little more protein (though I, too, like the 40/30/30 mix pretty well).
47 M 5'8"
May 4, 2010...... 440? lbs. (Start FitDay Size 60 Jeans)
June 19, 2010.... 393 lbs. (First Weigh-in)
June 19, 2011.... 229 lbs. (164 lbs. gone in one year :-)
Current Weight... 185 lbs. (Size 36 Jeans)
Next Goal 169 lbs. (07/04/12)
Ultimate Goal 165 lbs. (12/31/12)
The best exercises for weight loss are Fork Putdowns and Table Pushaways.