So I've never tried using the same disc in different stages of wear. Thought it was not a great idea when you could have different molds to cover various lines. Well today I used 3 Neutron Volts just to give it a try. I don't think I'll be carrying another driver for awhile. I used two first runs, one REALLY US, one slightly US with a good fade, and one newer run with a good amount of bite left in it. I had every shot covered today at two very different courses. What I liked was having the exact same feel in the hand every time the driver came out of the bag. The Volt powers down so nicely I didn't miss the speed 7's at all. I also didn't feel I lost any distance without the Inertia. This disc truly can do it all, and the feel in the hand is so comfortable. 3) N. Volts, 1) N. Alias, 2) N. Envys one reg one soft. Only 2 bogeys in 54 holes (one was a double, damn you hole #15!) I think I'm stickin with this setup, best golf all year.