x3 waste of money.
and the more arch you put in the shorter the spring becomes in relation to the stock length. the example 44" eye to eye is stock and thats length of main leaf. the lifted spring will still have 44" eye to eye but longer main leam to cover the arch and diffrent length. so even if you do it there is a point of not going to work as it will pull your shackle in the wrong way.