Flameon, We have 4 slides and they all have toppers ! What noise ? We camp on the shore and the wind is constant and sometimes terriffic. I carry mouth inflatable beach balls to stop the flapping, "IF" I need them. So far, I haven't. The slider over the LV is the longest and it collects water and flaps. I haven't heard it while sleeping so it don't matter. We sleep at night peacfully and are not botthered by flapping toppers... I'd say, get them and fix any (if any) problems as they occur. I also can give you multiple reasons why you should get them. If you want to be bored with these reasons, hit me back. Tom