This is cone shaped as well, and I will be using it on my skid steer.The fence builder here last summer had one mounted on the front of a skid steer. It was cone shaped. When full just lay it on its side, pull a pin that held the bottom plate, and lift it up. The cone shape allowed the spooled wire to fall right off.
Sounds like the same rigThey did 4 strands at the same time. Said they could do a quarter mile at a shot. They set in the middle and had wire coming from both directions.