Re: Artist Gouache as an economical option for artist Watercolor
I like granulation when I manage to use it deliberately, and dislike it when it creeps up on me unbidden (pretty much like any other effect). For example, today I was trying to paint some stereotypical mountain vistas (sunset, three triangular mountains, lake in front of them, trees disappearing from near to far up the mountainsides, you have SEEN IT BEFORE I'M SURE) and found that a few of my cobalt blues and violets did a wonderful job of leaving behind some granulation trickling down the distant mountain sides. But they also somehow managed to direct my muddy-purple-mix which I was using for more distant treetops to turn into granulated-muddy-purple-mix so I ended up with overly granulated sections where I was trying to depict finer details. The former worked. The latter didn't.
Also, the Gurney blog post (various manufacturers' replies about gouache formulations) was enjoyable and informative, thanks for the link!
Certified Closet Management Engineer, Slung Watercolor Society of America