Re: New kill
No one is exaggerating about the lack of power. Don't think that when the supercharger cuts out the HP reverts back to that of a standard Crossfire - it doesn't. The HP is simply not there. You will have problems just trying to maintain speed, accelerating will be forlorn wish.
When working properly the supercharger will kick in a half second or so after mashing the gas pedal and the car will surge forward and keep pulling hard. For a real thrill mash the pedal until you activate the kickdown switch under it. The point here is that when the supercharger works, it works tremendously; and when dead, well, Montana Crossfire is wrong - you can't outrun a person pushing a bicycle.
Does your car seem to have power when first driven in the cool of the morning? When driving does it lurch right before you lose power? These are the classic symptoms of a failing pump. What you have experienced with your car may very well be pump related but your symptoms don't seem as extreme as what others have had. At any rate change your pump since you are going to have to do so anyway. Then drive and see what your car does. If you are still having problems then we'll have to consider another cause. But eliminate the pump variable first.
Oh, and which pump did you settle for?