I have often thought of attaching 3mm shock cord to the end of my control lines and tying that off on the eye straps on the back of the cockpit or even drilling the grab rails I don’t see it causing any problems as you can’t reach the lines to adjust them anyway because they’re always on the other side of the boat but thought it would move the rope out of the bottom of the cockpit but what my real question is would it be class legal.