Jahaira's tweaks are well though out and carefully tested. It is hard to visuallize what they are exactly unless one actually sees them or a picture--but I've witnessed them in action. He is right about Moca wood. It was the very first time both of us experimented with it and the results were absolutely STUNNING. I had a board made for Sean and he agrees that Moca is about as close as it gets to an ideal material. Even my 23 lb belt driven transport benefits from its properties.