Footstraps are good for most conditions but in the really big nose dives they are not going to help you that much. Its like grandpa saying he doesn't need to wear a seat belt because he can hold on better! You need some kind of "restraining" device, the chick line is probably not a bad idea. Always make sure your spin sheet or a front foot footstrap stops you from falling in and off the back of the boat, falling like this with one foot jammed in the footstrap is one of the worse possible ways to mess yourself up on a cat.