Mathews Z7
Personal Commentary by Jon Silks about the Mathews Z7:
Mathews seems to finds a way to get it done year after year and the Z7 has proven it is up to the challenge. I knew the Z7 was doing well during the testing, however, I had no idea it would come out in the scores the way it did. It did not make the top three in balance/feel or draw cycle; however, it took the number 1 spot in shot noise and shock/vibration. The Z7 is a performer.
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Using the Above Table: Kinetic Energy: (in foot-pounds)
This is the energy that actually goes into propelling the arrow. Basically it is the energy that is left over from the stored energy after all of the bow system friction is accounted for. Using The Above Graph: The area under the graph signifies the amount of energy stored by the system from brace height to full draw (power stroke). The shape of the curve is generated by a plot of draw weight in pounds against draw length in inches and gives an indication of how the bow will feel when drawn. The more rounded the curve the more "smooth" the feel of the draw cycle, however, if the curve is "squared-off" it will likely feel more aggressive. The trade off comes in performance, as the more aggressive curve is generally indicative of more stored energy and more speed.
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Speed Results Graph / Data These graphs represent the consistency in speed (in FPS) over 10 bow shots (5 shots each on 2 chronographs) using the 350gr arrow shot out of a bow attached to a Hooter Shooter. We are including these graphs to illustrate the reliability and accuracy of the speed data.
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