Found this gem on Youtube:

Because it’s a local TV news report — and therefore trivialized in the most fingernails-on-a-chalkboard means possible — there is at least one fact error for alert viewers to watch for.

Video posted by Trekking Pole Guru, who has more tips.

I found I was never putting my hands through the straps properly, which explained the blistering and shoulder joint pain after about 12 miles. If it’s on right, the strap should go across the top of the back of your hand, parallel to a wrist watch. When you push down on the pole, the weight should come down on the back of your hand (This vid shows how). Much more at adventurebuddies.com.

These are the model I own (I had birthday money from my mom a few years back so I bought the Cadillac.)