RE: for those who still use butyrate dope
I only use butyrate dope (Sig's or Randolph) and any lacquer thinner will work just fine with them (they're probably the same), obviously, automotive good lacquer thinner with a slower evaporation rate would be best for spraying the final color coats, but for applying the base coats the nostril burning quality from Home Depot and or Lowe's would do just fine. I have never tried dope with other type of solvents but acetone will probably do it just as well, but I believe its evaporation rate is a little to fast.