I have been using this term lately to describe a session with two different snuffs that compliment each other (for my tastes of course). I take one and then the other about 10 or 15 minutes later, and repeat. I also will switch it up a little and take one up one side of the nose and the other up the other side of the nose, and then switch sides. Is this a pretty common technique, and is there another term for it? Sorry about my fixation on terminology.