Consistency
I just read this paragraph in a book about film in wildlife photographing.
“I heartily recommend that when you find a good film, or a good film and developer combination, you stick with them. Too many photographers have to try every new film that comes on the market; they are forever testing, and so they never achieve the consistency that is mandatory for good results.” —How I Photograph Wildlife and Nature, by Leonard Lee Rue III
Isn’t this the same for research?