The car in the picture was Dupont sealer thru clear. That stuff stays soft forever. I am sure I will be buffing it out again in a year. I am not familiar with R-M. I may have to check it out. I use alot of ppg and hok. I recently tried a new "budget" line from Kustom shop. I really like the stuff you can really hose it on without running it. Flows out real well and the pre buffed gloss is unreal. I think it has to do with the fact the base dries glossy. They sell single stage high and low gloss paints and because the base dries so glossy it says right on the can "this product must be clear coated". Anyway its 150 for 1 1/3 sprayable gallons. I get a lot of call for the flattened paints nowadays. I first used there paints after last years sema and they gave me a whole bunch of paint and flakes to try. I have also used sherwin williams in the past and some of there metallic bases have some large flake with lots of pearl but the clears solvent pop too easy if its sprayed on too heavy. I would say the dupont is the worst for overall shrinkage.