Yeah fair call. Definitely not a lot left over the stickers to be hitting with P240 at the moment given that they've been taken back to within fractions of a mm of their lives. When the next load of clear coat arrives.. hopefully in a week, I'll hit it again with a few coats and see how we're looking. It shouldn't need a whole lot more to build it up to a point I can level it. I've still got a bit of P320 floating around.
Even with the 1500, it doesn't take much to wind up cutting through the coats over the stickers. The sanding has been focused manly on the stickers trying to bring them down, and working the edges down to loose the build up around them. The rest of the body has been getting just enough to loose the shine and remove any runs or other annoyances that appeared (like hair despite being hung up). It'd probably be more time effective to just ignore the stickers, but then it's hard to gauge how much is enough, so putting some effort around the stickers seems to make it easier to know where I'm up to.
The big thing I've learned with the Krylon really quickly is that you either need to act fast or what a long time. You can keep recoating within an hour of each coat and its fine and you can just keep going within reason. If it turns hazy, it will usually pass within 24 hours. If you let it go, then you're stuck waiting days, and you need to sand it.