Depending on who made your hulls will determine if they are strong enough. We have 2 Carter built timber boats with short bridals (one mk1 one mk2) at our club that we have had kites on for at least 4 years with no probles.
"Sixth Element" 1782 MK2 w/spinnaker. Lake Bonney Y.C. National Sec. / S.A President / S.A Measurer / Commodore LBYC