I have shot a few 3d tournaments, and am looking at getting into it more serious this year. I am going to shoot glue in tips, 5 pins (fixed), and a 7 inch stabilizer. I dont know what vane length I am going to shoot. I guess I can start out at novice...but if I win or decide to move up I want to have fletching appropreate for the next step. What would this be. What is the difference between MBR, the open classes, and the "money" classes I have heard about. I thought a lot of classes gave out money. Thanks for any help.