I'm an avid morning lifter. I normally have to do about 10 to 20 minutes of passive cardio to get my eyes open. Then 10 minutes of Yoga. Further, I'm not adverse to using a carb free energy drink or the ocassoinal no-doz to get the blood flowing. The emphasis is on "ocassional."
I try to avoid carbs prior to my morning workouts because I use them more for turning on the "fat burning" engine. Lord knows I need it.
All the best, Arden