I certainly wouldn't think so. Although your boat is a bit bigger than mine, I towed my MC209 with a my tahoe for six years without any issue. WDH is really for heavy, heavy applications like brandon said. It helps distribute the weight across the vehicles better. I would make sure that your hitch is the right height to make your trailer level and if you get some sag in the back on your tahoe that you add some airbags.
In another life, I used to sell WDH's and I don't think they work with hydraulic brakes, they are intended for use on trailers with electric brakes. But this was 12 years ago
things might have changed.
(Message edited by phatboypimp on May 05, 2008)