Here is your ClipperGuy / Andis clipper tip #87
87. Calm The Shakes – Pull on the clipper comb while pushing on the clipper. This counterbalancing will steady your tools.
Flat top cutting requires a steady hand. Top cutting requires balance and control. Counterbalancing clipper against comb makes this easier.
I see a video of this coming in the very neat future. it will be easier to show this than to type it out to make CLEAR sense.
Here is the link to the book with ALL my technical clipper tips if you do not want to wait.