I have covered all or the major portions of over 40 aircraft, and have used many different processes and finishes.I will do what ever the customer wants, but for my own machine it is Aerothane, and you can make it look any way you want it to look mostly by how much you use and how much you thin it. It's tough, resistant to stains, not heavier if applied correctly, and no big deal to repair. ( It does not lend it self well to paint repairs that don't show.) I find that Ranthane and Superflite urethanes are much easier to spray, but they generally end up heavier. I will do poly tone, but don't recommend it unless always hangared and kept clean from gasoline, bug, and acid rain stains. Not saving any money if you have to paint over in down the road and that adds weight. I did a new rudder for a 12 in polytone a few years ago (white) and it still looks good but is a vertical surface and that makes a difference. Lots of good info here; make a choice and have at it, good luck. Reid