I've not heard of a Rocky Mountain Smoker. Hopefully someone will be along shortly a little smarter than me.
What type of smoker is it? Charcoal, gas, electric? Offset, upright cabinet, or bullet type? How long does the smoke last? And last of all remember you don't want alot of white, fluffy, or billowy type of smoke. Thin and blue almost invisible smoke is what we strive for.