Greeting's I have a 34 SF sloop above the waterline under the uper and lower stanchune (on freeboard)the fglass is puckerd in on port and sarboard sides the chainplates arent.simply u-bolts topside and below 3/4wood pad with ss plate and then nylon nut all six are individualy conected to each u-bolt.will conecting three on each side with long peace of ss,nylon pad bring the stress out.