Here is your clipper cutter clipper tip number #56
56. Apply The Pressure – Apply pressure around the perimeter of the haircut to tighten the skin for closer and cleaner trimmer finishing.
I do this all the time without even thinking about it any more. it has just become instinctive. Better cutting and blade clearing results with some slight pressure to tighten up the surface you are clippering off of. Try it today. Use it every day after, forever.