As with any CO that you buy. You will have to adjust them a few times before you get the right height. Accept it.
I mounted mine, drove around and readjusted them. I have readjusted them 4 or 5 times. Remember that, roughly, it is a 1/4" at the shock gives you ~1/2" at the wheel. (shock is mounted inboard) I can, and have, adjusted mine without pulling the tires.
How to: Adjusting Coilovers without removing the tires
*Spray lube is your friend.
*Lift the front of the vehicle with a floor jack, unloads the coil
*Turn the wheel hard to the left, this will allow access to the drivers side CO
*Measure the threads and figure how much you need to adjust
*With gloves on, crank on the adjuster, you will only have one hole of rotation with each crank
*Turn the wheels to the right and repeat on the passenger side
*drive around to get the suspension to settle.
*Repeat the process if needed to achieve the desired height.
*Make a note in your owners manual of the heights. This way, if they settle, you can adjust to get back to this height. This could help keep the alignment set. (measure from the hub center to the wheel well lip)