Just got my Bilstein 5100s today and was looking at them. I noticed that the adjusment grooves on the shock body are a lot closer together than the amount of lift that they provide. I confirmed this with a measure. I didn't measure each groove but the distance from the bottom groove (stock ride height) to the top groove (2" lift) is only 1 3/8". So how does 1 3/8" difference equal 2" of ride height difference? Thanks.