I believe the difference is that the Pro Series is " pro shop only" . The rest are not. (I may be wrong on that?)
As far as the Nitro goes...I have never personally shot one. I' m sure they are nice....but a little low on BH for my likings. I personally think the Primos is probably better. That seems to be a great setup all around. I currently shoot a Thunderbolt, and I love it. Go test drive a few and see what you like and what fits your needs.
Like WV Hunter said the pro series are the bows that a PSE dealer carries in his/her pro shop while the other pse bows are ones that can be found in Cabelas and other similar places.
The dealer I work for is supposedly the largest PSE dealer in NY. He carries bows such as the Diamondback II, Beast Inferno, Outlaw, Deer Hunter, Beast S7, Primos STL, Nova, & Triton. Bows such as the Baby G or the Firestorm can be found in Cabelas.
PSE Users...
