for tinting the clear section, you may have some luck going to a shop that sells model kits and the tiny paint jars for them. When I built my Star Trek Enterprise-E model, I was able to get some translucent blue for painting the inside of the clear warp nacelles so that it could be lit from within. (sorry, it's in storage now, no pics available) - you may have to thin it down quite a bit with turps or perhaps mix with a translucent white as well, but if you've got something you can test on, couldn't hurt to try. Are you painting the outside of the clear? That can cause whatever you're painting on to build up on some parts of the surface. If you paint the inside rather than the outside, the colour should come out more even-looking. But I stress testing this first on something that can flex (you can buy clear plastic sheets about the thickness of the clear sole and more from some rubber shops, though they have no pattern so they suck for soles - yes I've tried but not on MAGs) as I'm not sure of the flexibility of that type of paint. The only thing I ever used it for was a non-flexing part. But there may be a water-based option these days, which are generally more flexible once dry. Just a thought, there's no model kit shops near me to check and give this a test to fight the yellowing of my own clear soles, though I'd like to. When I have time I might go to central Melbourne which should have something I could use. Failing even THAT, maybe a small piece of light blue translucent Contact (a stick-on book covering) put on the inside of the clear might help. That's something I can go look for today.......