Hey Spydermonkey
If you're going to Intellifeed your hopper, don't waste your money on a 12V, get the 9v Rev. Your gun's battery is only 6v anyway. If you're going to NOT get Intellifeed, then only get the 12v Rev. The paddle turns quicker...alot of guys like to modify the stock paddle in some way....Some people like the Eggolution rubber paddles, I perfer the WeedWhacker paddle arms. I went with the weedwhacker version to stop from getting ball jams under my stock paddle when it was very hot and very humid. From what I've seen of the rubber paddles, the arms just bend up and over a ball if the ball can't move, so they don't jam either.
I like the idea of Intellifeed, but at the time that I had one, I kept knocking the connecting wire loose...also, I got a Cobra board that let the paddle spin with every trigger pull. The WDP boards at the time would only spin the paddle if you shot more than seven shots or more than 2 bps...this kinda sucked if you had a lowrise that only held 5 balls (you dry fired when you shot up your ball stack if you were slow firing) and you had a tendency to take single or double shots (that's all I had time for). I eventually ditched both the Intellifeed and my Angel...but then again I also tended to bounce of the ground several times as I came into my bunker.
Good luck on whatever you get.
Ray