I highly recommend a six puck disc for ANY type of racing. Basically the street disc will last the longest when used for STREET use. The six puck material is more suited for racing applications. You can not tear or break the 6 puck material. Track racing can be just as hard on a street disc as drag racing.........The street material can not handle sliding of the clutch or fanning. When track racing it is easy to have your adrenalin running and fan the clutch off of a corner to keep in the sweet spot of the power band. Also it is easy to miss a gear and the drastic change when the engine over runs from hitting second instead of fourth can easily cause a street disc to come apart.
