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I was thinking of making small clear side deflectors to better shape the wake. One of my concerns is the spread of pressure, maybe the pressure in the center of the trunk will be the same but if I've increased the pressure (as in less negative pressure) on the sides then the total drag force is reduced. I was thinking maybe hook up several hoses together to average the pressure so I can better measure drag force instead of pressure at one point. I think this would work as long as all the tubes are the same size. I think in that article he used two hoses hooked up to the guage, one on either side of the rad to measure pressure across it and therefore flow.
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