My trainer said the Buddy Belt was part of the problem with Hulk having trouble focusing on us when he's walking and where we want him to go because the pressure was kind of "all over" and not one particular spot. The front clip harnesses, like the Sense-ation one that we use now are better for that kind of thing. Also doesn't go near his neck, so no trachea worries.
Hopefully we can transition back to his buddy belt once he's got the hang of things, because I really liked it, but right now the Sense-ation is working great
