I would love to build a tug drive in Draco. He has a better tug instinct then Riley did, but still so far is not doing "great". I have never taught a dog to tug before though. He gets the idea for the most part to hold on to whatever toy, but wont pull back aginst me. He tugs the Best on his nylon leash (not leather, good dog!)! He will pull against me, grab it, shake it, etc. I am thinking of buying a tugging leash, but dont want to confuse him too much as I dont want him tugging on my nice leather ones (and so far he is grasping that pretty well, nylon=ok, leather=no). Any help!