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hockey puck coverage
As stated previously, above is a diagram of the coverage areas of the three pucks when horzontal (zero degrees from the playing surface). But look at what happens to coverage when the angle increases:
It is clearly seen that in the instance of the plastic roller hockey puck, that the glide peg to surface coverage is compromised as the angle of inclination is increased, while the coverage of ProPuck's glide pegs remains continuous and uninterrupted over the entire range of motion.
As stated previoulsy, we need not forget that the puck travels both horizontally and rotationally during play. To further illustrate the how the Plastic Puck compromises frictional resistance as it rotates along the surface of play, let's look at the pucks from topside:
The glide peg coverage area, as illustrated in RED shows the design difference between the Plastic Roller Hockey Puck and ProPuck. With ProPuck, the glide peg to surface interface is uninterrupted as the puck glides and rotates at a 20 degree angle. With the Plastic Puck, the puck to surface interface moves away from the glide pegs to the outer edge of the puck body. As stated previously, the shortcoming of the Plastic Puck is simply that the glide pegs are only effective when the puck is flat, as opposed to ProPuck, where the glide pegs are effective over the entire range of motion during play.