FWIW, I used some lowering blocks, flipped and swapped the lower brackets. And, WOW, the ride of my lowered truck improved about 125%. Picked up about 2.75 Inches of travel and NO bottoming out. Did not know it could be this good. Hope this may help someone.
I had the lowering blocks as I was searching for the best ride height and then went to new springs and drop spindles. Therefore the blocks were sitting on the shelf.