I know there have been a lot of threads on this subject, but in the fifties and sixties I remember using balsa fillercoat followed by 2-3 coats of butyrate color and then 2 coats of thinned butyrate clear (sanding between all but the final color and the final clear coat) for a very good finish on the fuselage and tail feathers of the many Ringmasters that I built and flew in this era. Do I remember this right and what can I use for fillercoat that is compatable with Brodak butyrate dope, I am wondering about minwax waterbase ? I am open to any suggestions on this subject, including any better alternatives to this procedure. I just remember that it worked very well at the time and was pretty easy. Thanks, Bob