A bow doesn't have to be fast to kill deer. I've killed several at less than 200fps. That said I want all the Speed I can get as Long as the Bow is Quiet, Smooth, and very capable of Tight Groups. Bowtech has filled these requirements better for me than any bow I have ever shot. My Allegiance is shooting over 300fps and is a tack driver as well as being quiet. The Guardian is just slightly behind in speed and even quieter and smoother. The accuracy of the Guardian has really impressed me also.
The 08's will even be better

Dan