Phil's video about the physics of front side resistance helped KK to understand so it may help your DD. His forearm fire technique is a non issue and we did not bring it up.
[video=youtube_share;twac4MlTlaI]http://youtu.be/twac4MlTlaI[/video]
[video=youtube_share;twac4MlTlaI]http://youtu.be/twac4MlTlaI[/video]