Hi, I had one of the original 10' x 27" without the channels which was a great board, rode it with a 9" single fin, unfortunately it got damage and they replaced it with a 10' x 29" with the channels. Although it had more volume and wider it didn't feel any bigger and also surfed it with the 9" single, they are great boards and I would recommend them, they surf great either on the nose or tail. The only reason I moved it on was because it was the only board I surfed for 12 months in all conditions and felt like a change.