I was buying some Spraymax 1k paint to do my Trex Eyelids and my paint guy had a sample sheet for speedway blue that had 6 different color chips, all in speedway blue. They seemed to each be very slightly different variations of the SWB. Some appeared slightly darker, others appeared to have more yellow to them, but very subtle. I ended up with the 8P1 in the 285LR version. Did they change anything through the years on the SWB or have different versions for different vehicles?