I have sailed larger boats, full displacement hulls, and have spent time in the Bombardier Byte, & some on Hobie Cats (16) I am now looking at buying a new Laser, or similiar boat, purely for fun, I don't envision racing it in organized events. I am curious as to the speed attainable on a standard Laser, with one 170 lb crew. Has anyone ever carried a GPS & obtained an honest speed readout? What speed wind is required to plane these hulls, & what speed would you consider the upper limit on a freshwater lake, ie no ocean swells to deal with. Thank you for the info.