i have an rrd toxic for waves when strong onshores mess up the swell
works really well to carve the wave heel and toeside when the kite is depowered and as a tt for old school boosting off the ramps (IMHO getting air on a strapped surfboard looks clumsy)
doesn't get upwind quite as quick as a surfboard
i've kept the shorter fins for the reefy shallows at cott (surfboard length fins catch too easily)
if the waves are clean and the wind is light then a surfboard can't be beaten