I watched some leerburg videos (one being: "building drive with Bernard Finks) and started the exercises when I got my pup at 8weeks. I started with a towel and progressed to a ball on string. I'd like to start introducing defensive drive (if I find a qualified helper) in the next year.
Please watch the videos below and critique the technique and let me know what I could change to get more out of my dog. He's just over a year and a half and a wgsl.