locating leaf spring sliders

Hey FABO!
I am getting near final welding in of leaf springs sliders and looking for advice. I have gas tank and exhaust mocked in with everything loose still. They are tacked into place now where i thunk they go. I read somewhere on this forum about having the rear hanger/ slider slightly splayed out. Can't remember why but my plan is to check to make sure they are close to being in same spot generally, put in drive line with a couple cinder blocks in back to make up for the absent rear glass and interior weight/gasoline, set my pinion angle, and when pulling diff for final welding (the leaf pads are not welded yet) make sure the leafs are not binding on the forward mounting holes/receptor/ cups. Is there anything im missing?

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