Reckless speculation, but with KW's help, will PD's suspension tuning descriptions be more clear than what we have today in GT5? From the KW Suspension website... Yep. Just as cryptic as the GT5 wording. Adjusting Bump: Bump forces, especially on low damper speeds, have a great influence on handling and driving behavior of your car. The setting of the bump forces will be made from the bottom of the shock case. Behind the adjusting groove you gain access to a knob with 4 holes. With the supplied small pin, the adjusting knob can be turned a quarter per turn in either direction. Smaller increments are possible. Before performing any adjustments, the valve must be closed by turning the adjuster in the full clockwise direction. In this position, the shock will be at full hard, or maximum power. From here, the adjustment range is 8 x turns (2 full revolutions). To avoid the mismatch of the dampers when actively changing settings, you should close the valve from time to time to re-calibrate the settings from side to side. Bump adjusting principles: Generally, hard low speed bump settings will stabilize the corresponding axle (less oversteer on the rear, for example) or offer the front a more precise steering response. Too much low speed bump power will decrease grip! Depending on the valve configuration found inside the kit, maximum bump forces will not influence the suspensions response when encountering hard bumps, such as curbs on the racetrack. Adjusting Rebound: Rebound adjusting principles: Generally, low rebound settings provide a comfortable ride at low speeds, but decreases stability at higher speeds, especially on the front axles. Too much rebound will cost vehicle grip. Depending on the drive train configuration of the car, rebound setting for the rear axle will vary. Rear and four wheel drive cars: In most cases, the rear shocks will be set with low rebound power. Except, when equipped with very hard springs, higher rebound forces will be required. Front wheel drive cars: Street driven applications will seldom require the shocks to be set with high Rebound forces. In the event somebody wishes his car to over steer, these high rebound forces on the rear will be explored.