The Chore That is Backcombing: A Review

Backcombing has been an art I have repeatedly tried and failed to master.I think I'm scared to over backcomb and end up under backcombing.The irritating bit about it is that backcombing when don't properly can add volume and body to the hair.
Below is my Youtube video review of the Denman Dress Out Brush.

I Find myself doing a lot of this:

Fearing I'm doing this:

I hope to be filming more now that I'm home and settled.Please ignore my husky summer cold voice.

Do You like backcombing?Any Tricks and hints appreciated!