When I first bought Poco I used a full cheeck snaffle on him and it only went from bad to worse so I started using a side pull on him. Well, over the past 5 years he has become EXTREMELY headstrong out on the roads and I can't have that. I have two hackamores in mind a Stran Smith mechanical and a Jim Warner. Both in which I like alot. I was just wondering if anyone else has ever used either of these. Also, I cannot find a breastcollar that will fit Poco. Everything is too small by like 5-6 inches. He is 15.3 hands and weighs approx. 1125 pounds. Nothing works out. I thought about a mohair breastcollar but I really can't pay all that much and it not fit. Any help on finding a bit larger breastcollar? Draft size is too big but horse size seems to small.