The kit has (the lowering kit is the one I got) a PVC spacer in it that you can also cut to lower more. Lowering it from the trees just depends on if you like that look of them sticking up out of the trees. But, lowering it from the trees gives you full shock travel? As the lowering kit cuts your travel.
I'm happy with my lowering kit if that helps, but I dropped 1 1/2".