Rattletrap,
Although I haven't purchased Patrick's spring kit, I have had old springs rearched. I think the process is to heat them, bend them on some sort of a caul to factory specs, then temper them. They put the truck back at a factory stance...not too cool of a look. I think the standard finish from a spring shop is to paint the springs with a nasty black paint. I have always felt that a spring should look like a spring, not a Chip Foose paint job!
Removing leafs (?) from the pack will definitely lower the rig..the spring is shorter in height, and will lay more flat. I think you will notice this in a negative way in your ride.
Stuart.