The truth about caltracs

I run mine with no preload, actually an 1/8 inch of gap at rest. I run my tires at 12.5 to 13 psi. The caltraks hook great when the track is good. I have been using them for 2 years now, but am not an expert by any means. But I do like them. One thing I have been wondering watching this thread is this; Calvert offers different spring segments for each app to change ride heigth, and for weight. I have mine set a 1" higher than stock and the bar is in the lower hole. Has anyone tried changing leaf spring bias to see if the consistancy is improved? He will change them out for free once. He did for a friend of mine for his ride.