APM PIXHAWK Anti Vibration Foam to improve GPS and Altitude Hold (Hobbyking)

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I am trying to improve the GPS and Altitude hold on my Reptile 500 Quad with the APM Pixhawk from Hobbyking installed.
First suggestion from a helpful viewer was to make sure it has the anti vibration foam installed. So here are the results from doing that. Defiantly helps but still needs some tuning
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