I have shot the X-Force and the Drenalin and Im torn between them. I havent had a chance to shoot the Vetrix yet. Being a long time PSE Consumer I have to say I like the X-Force, but I also like the Drenalin as well. I shot both bows both set at 60lbs and using the same arrow 30 inch draw and 100 gr head. Ill be 100% honest. I didnt notice much of a speed change between the two. The X Force through the radar shot only 6fps faster than the Drenalin. If I were to buy a new bow for hunting and had to chose between the two....I think Id honestly go with the Drenalin for hunting. But when it comes to warranty and such, Id have to go with the PSE. I knwo combine the two and youll have the best bow on the face of the earth, the Drenalin- Force.