You won't get better than dupont,I've got a gallon and it costs £500!!!but I've never had any problems with hp body 497 and m/s hardner.max meyer is wank IMHO,along with mipa,gives a very flat finish,all mipa stuff bar laquer I find brilliant.90% of cars need a polish so the laquer dosent have a huge bearing after that.a lot depends on how hot your booth is when painting,how you lay it on etc.we've stopped using rocket for a while now as it seemed to cause a lot of shit under the laquer,I fancy due to drying it too quick on the surface making the first coat really dry,if your first coats dry it dosent matter how much you put on your second it'll still look dry,better to go heavyish first then lay it on the second really heavy,you risk runs but their correctable,dry finish is much harder to sort.