Well...
I can definitely tell why you wanted to trim this down, and I really like the lengths gone to make a 3D cannon game (I think that's unique for this site).
I guess the reason why we can't adjust the firing velocity anymore is that you knew we were always firing at Maximum power anyway.
What keeps it from being a perfect 10, however, is that since we can't see what's ahead of us on the track, there's no strategy involved in aiming anymore, it's all only luck.
Love the music you selected, though!