I bought a set of works dual rate with rezzies and +2 +1 a arms of a member. I already put the a arms on and I need to know what measurements to use when adjusting the preload. Can somebody tell me how to set the sag rate? I know how to adjust the preload on the shock, but I need to know what the sag rate should be set at and where to pull my measurements. I will be mostly riding trails with some track riding mixed in if that helps. Thanks.