In situation 3-4 Bft. I also want to surf the Rio, with rig 9 m2., so both Rio S and M will do well for me. The Rio S then will be faster and more in control I presume (anyone experience with both boards ?). The children I think will surf the Rio S better after a few years and the Rio S is also easier te carry. Nice to hear you orderd also the Rio S. The nice girl in the video was only a few seconds on screen, maybe Starboard should change that, most surfers like to see girls surfing ... (my wife doesn't like surfing, but maybe a new Rio can change that). Again thanks for your reply.