I have a seadoo oem cover for my challenger 180. Are we suppose to have the anti pooling poles installed when pulling or no. I have heard about covers having the rubber vents on them that vacuum the cover on the boat when pulling, but all mine has is the mesh vents on the side. So when I pull my boat the cover sags from the wind in the front and flops on top and behind the windscreens. It has lightly scratched the giant seadoo emblem on the top of the cover into my windscreens.