[DRH]

That's good advice from LIforrelaxin. I've used dock whips for many years with good results, but there are short whips, long whips, light-duty whips and heavy-duty whips. The weight, length and beam of your boat are the primary factors in deciding what type of whips you need, as is your degree of exposure to rough lake conditions. As LIforrelaxin suggested, I'd also advise you to contact a "pro" who can advise you properly.