I know what you mean about older lacquer paint jobs a lot of them usually look like a hard boiled eggshell cracked all over. I do know of one exception however.In 1971 a coworker / friend of mine who was pretty handy with his Sears air compressor painted my 46 Ford with Ditzler Nitrocelluose supplied by I think from a guy in Hemmings Jud Irish was his name,paint was an original 46 Ford color "Modern Blue". Entire job cost me $300 and although I sold the car in the eighties I see it now and then and it still looks good,no cracks. Add also the garage is was painted in was a dirt floor shed that he watered down dust before shooting.My 46 coupe got a second place at 1976 Early Ford meet in Valley Forge.