Thanks so much Snail on the compliment...I do have videos on how to do arms and elbows (which are pretty easy once you know how to do the arms)! 

As far as rods it depends on stuff...I mainly like them more going into part of the palm....but I would say that going into the wrist you need the rod bent like the #7 to go into the wrist and over to the palm of the hand.

The one I show in my video on YouTube is putting the rod device into the palm of the hand.

Hope this gives you some thoughts.

StiqPuppets