Cutting and Reinstalling Lowering Blocks

I'll be moving in a few months so I wanted to go ahead and put back in the lowering blocks before I lost them in the move.  Instead of just installing them, I thought I'd try to cut one of them so that I could get the Mustang to sit level in the back.  This is certainly not recommended but I figured it was work an experiment.

Before starting, I measured and the rear passenger side was at 26 1/2" and the driver side was at 26 3/8".

The stub which sticks up on the leaf spring is .35 tall.  This is important as the hole in the spacer is only .6 deep.  This gives me an idea of how much I could remove from the spacer without the leaf spring stud bottoming out in the spacer. 

I cut the lowering block down from 1.007 to 80.  The cut wasn't great so I'd like to do it better later if this ultimately ends up working out.  

Once I put it all back together and it is currently at 26" on both sides.  This leveled everything out but one side bumper (driver) is about 1/8" lower.  I'll have to work on this some more as some of this is related to the suspension and some is related to the bumper itself.  For now, I'm going to post the detail so I don't forget it.