RE: Great this is just what I needed.
Ask him what the poundage on the bow is.
The reason I say this is so you will have some kind of idea how much different the cam feels on the same draw weight.It sounds good to say the spiral is 10 fps faster but most people have to back them off 5#'s lower in draw weight to shoot them,basically nullifying the speed increase.
If you like the feel of the cam,then great, just offering a heads up.