I had a rear skirt guard on our Mandalay Presidio and we took it off. It kicked up more stuff than if prevented. Instead we put a Roadmaster Guardian tow shield and that worked the best. Some dinghies don't allow for the Guardian as you can't block the air flow. Bow Roadmaster and Blue Ox have screens that are rated very good and can be used as long as you don't have a diesel rear exhaust.
Fred
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