I am going to start training one of my pit bulls to pull weight. we will most likely never compete but actually use her to pull small brush or logs on our property and eventually teach her to cart. I was wondering if anybody could suggest a good place to get a strong weight pulling harness thats not overpriced. Any training suggestions? She is 3 years old and in perfect health , I know to start slow. Thinking about it it seams pretty straight forward.