Moog springs, how much do they settle?

[Steve]

I just tried a new set of moog rear springs on my car and I am curious to how much they will settle. I installed the 2501's which lowered my car about 3/4". I like them but I would like them to be about 1/4" or 3/8" lower. Will they settle and if so how long does it take? The springs are in the car now but the car has not been driven or anything yet. Thanks