I do, some. It's not any "official" protocol, it's whenever I feel like it. I don't want to plateau, its too depressing. One day I add about 200 calories and the next 200 less calories. I have edited the number of calories allowed, since I use Precision Nutrition's weight-loss calculator with each pound I lose. It's been mostly keeping me from plateauing (except once when I went up and down a pound for three weeks). I also cycle my carbs every once in a while. I've been doing this for a year now, every three or four weeks.
current weight: 170.0