Being that the paint was fairly fresh (only three months since sprayed), I worked the sanding around the entire body for each grit allowing further time for the paint to gas off (evaporating out the solvents). As you get to the finer grits some shine begins to come back.
As I began to coarse polish, the Green Bastard reared it's ugly head again. For starters this paint was a Bear to bring up (get the shine back) and work out the stray scratches (I believe that was mostly resultant from the additive but this is a production type paint so not specifically formulated for polishing) I was working my way around the body and I noticed when I looked back at the first area completed it seemed to be not as nice as when first finished.
Note the "bumpy" look of the light reflection. (the reflection doesn't lie!)
So I went back and resanded an area that was first completed.
Back to the drawing board... The best we can figure (along with the paintshop guys) is the paint was not yet fully cured. Due to the heavy application we think the drying process (cross linking) was actually still moving the surface around. This panel had been fully sanded out flat and polished out about 3 weeks earlier.
So... change in plan back to MY "normal" routine. Firstly start with 800 grit ! So I picked one area and re-worked it until I was satisfied.
The reflection doesn't lie !!