I usually will lightly rinse the dry brine from the fish, pat dry then put fish on a rack and use a small oscillating fan to help move the air around. It usually takes about 2hrs to get a nice pellicle to form at room temp.
I dont think it matters which route you go, as long as you can get that pellicle to form.
I got some I am tending to right now, about another 30 min and ready to pop in the smoker.