This is an excellent question. I have found that in most cases, experimentation by trial and error based upon others posts generally yields the best ultimate answer

For example. I did not have any knowledge of "glassing". After reading many posts on the subject, I had found that there were too many different products available. I then narrowed down the glassing method to two. One using Lacquer, the other using West's Products. I then experimented using both on the same plane, the Lacquer on the wing, the epoxy on the tail

The same experimental method will be applied to painting. Only this will be applied on two feathers. Now I know that each method has its pros and cons, but "I" now can chose which process will be my favorite to use.different aircraft (Automotive Paint vs Latex).

The bottom line is that the experienced builders on RCUnivers' site provided me with the basic knowledge that I have to learn from in order to not "re-invent the wheel".

Lew