[speed220mph]

This laser deal doesn't take into account tread change and anti-dive features, so using a laser as described can screw up bump steer badly if you use this method to locate steering pivots.

The most accurate way of doing a bump-steer check is with a surfaces plate mounted to a hub, then position two dial indicators level with each other to stands sitting on the floor. With the indicator plungers compressed and at the indicator set a zero, run the suspension up and down. By the way, you have to remove the coil-over assembly and support the car while doing this. After moving the suspension up and down from ride height one inch at a time, record suspension position and indicator readings. Calculations will give you toe in inches or degrees, whichever way you prefer to go.

Another quicker, but not as accurate way of doing bump steer is to support the car at whichever end you be checking--in your case, Bill, the front--, remove the coil-over units, set each wheel on turn plates and jack the front up and down from ride height. You can then read out toe directly at turn plates at each position.

A quick check can be done by setting the front wheels with the coil-overs intalled, then get someone to step in the front bay behind the radiator and read the change in turn-plate degrees. Ideally, there shouldn't be any change. You'll can also check for any bump steer in rebound by raising the front in increments with a jack. There are other methods of checking bump steer, but they all involve moving the wheels up and down a prescribed amount and measuring bump one way or another.