I use a FireWire Taj Model which is very similar to the Alternator. I like it a lot. If you have never ridden a FireWire before you will notice the difference on your first bottom turn. The boards have a lot of "pop" (I guess thats the word Im looking for) when you lean into a turn.
took my alternator out for the first time yesterday in 3-4+ surf; the speed of the board caught me off guard. Once i got used to what you (TIm Bo) call the pop, i fell in love with the board. I made sections i never could, and got some ridiculous snaps and turns while maintaining speed. I feel like the board was meant for me to ride!!! stokeddd