leaf spring lowering question

[joe231]

hey guys, I have a question.
I have searched and found some info, but I'm looking for specifics.
I have 6 leafs total on my '80 short wide (according to the vin it is a heavy half), the top that mounts to the frame and shackle, the thick one on the bottom and 4 in between. this truck sits very high in the rear.
I would like maximum lowering with minimal ride problems (not asking for much).
can I get 3-4 inches by pulling the thick lower leaf and 1 or 2 of the 4 in the middle with out a lousy ride? and which middle ones. i would like to keep the second to the bottom as it has the bracket to keep the leafs from fanning out.
here are some pics of how it sat stock




and how it sits as of now






gotta pick up some new spring locater pins/bolts tomorrow
thanks in advance for any help
joe