I've used both and mine don't rattle because I put them on myself and am' a bit anal when it comes to getting them on correctly. Anchor points where they are supposed to go and everything balanced out and spread properly. #8 stainless flat washers were needed to satisfy my concern of proper fastening on one bike for the rear struts once as I recall. Here is my commuter with 26 inch wheels and Planet Bike 29'er fenders that give a more wrap-around affect and more coverage/protection from the rain: