Waited a month (well, 2 months, I had to travel for work, and work, and, well more work) to polish the bumper cover and header panel that I painted. I hit it with 2000 grit wet/soaped up sandpaper, then polishing compound, then a another type of polishing compound, and it looks 1000x better. I then put a coat of "polish" like wax, and two coats of wax.
My hood has ALWAYS been darker than the rest of the car, and I tried to get an in between shade from the fenders and the grille, but the final coat that I did from a distance to get the metal flake to pop (and it looks identical to the factory/previously laid down respray) actually lightened it more that I thought it did. I was probably one coat away from the best a rattle bomb could be.
Drove it through a million bugs, and two sand storms, and the finish held up great, when it peppered the headlights and caused even more stress like fractures.
I also have had the gas smell in the interior happen a couple of times again, so I tore into the Vapor Canister Vent Solenoid. The screen was completely clogged, I could get the screen about 75% unclogged, but it should be much better. I have a couple from other cars I might clean up and Frankenstein to see if it helps.