Never tried Prime, but i've seen pretty good results with Anabolic Pump. It is a fairly strong Glucose disposal supplement. You take a pill about 15 minutes before you ingest approx 40 -60 grams of carbs. It shuttles the glycogen into the muscle cells and prevents it from entering fat cells. I have noticed increased fullness, better pumps and lower bodyfat. By the way, you will notice most people on this board believe all supplements are useless so you probably won't get too many valid opinions here.
JUDGING BY THAT NEW PIC AROUND VARIOUS THREADS EATING,AND DOING THE ABOVE HAS WORKED WELL,,,