Boom Vang is important
My H33 has the type vang that Steve described. It is a very important piece of equipment because it controls the shape of the sail, and with that, speed. You don't need to be a racer to add a boom vang.You might also consider a rigid vang instead of the block and tackle type. Garhauer makes a nice solid vang for a very decent price.Ken Palmer, S/V Liberty