I bought the combat eventually, sailed it a lot over the past month and I can suscribe to your view it's a great board. I love its early planing, manoeurvability and ease at jumping, if feels great in choppy seas but if the wind drops I can even uphaul if ever needed despite my 85 kilos.
Re fin, how about those true ames fins? I read a posting where you were sugested such a fin for larger freeride sails. So far the biggest sail I have rigged on a kombat was a 6.3 North DUke, how about larger sails?
for those light wind days I am thinking about buying a 7-square meter Severne or an Ezzy, are you managing to rig an 8-meter on your Kombat?