I have about 70 hours on my
Woodmaxx 8H, all on my Branson 3725. I had a MacKissick TH186 before, which I used on a Kubota
B7100. It's a 4.5"
chipper while the 8H is 8". The macKissick is a "chuck and duck" self feeding
chipper. You have to tilt the material up to get it in the upwards pointing chute. Then pull your hands away quick when the
chipper catches it, because it will pull it in fast. Sometimes it has to be rotated to get it to "catch".
The 8H's chute is horizontal so it's easier to get larger heavier material in it. Sometimes I lift the butt up onto the chute and then go lift the other end and push it in. But usually I cut it small enough to be readily picked up. That's still way larger than what I had to do for the MacKissick. That
chipper required much more cutting to get material into it, and more careful feeding as well.
The 8H is hydraulic feed. It's much easier to get it to feed, and since the feed speed is controlled, it's also safer. At this point I would not go back to a non hydraulic feed
chipper.
My tractor has 32 HP at the PTO and there's been times I could use more. We have a lot of wood so I chip stuff that other people might use for firewood.
Around here used commercial trailer type stand alone chippers are expensive. They might be cheaper where you are. There's also renting. I don't like renting because of the time it takes to pick up and drop off but maybe you're closer, and able to arrange your piles to make a rental day worth while. Renting once would also let you try out hydraulic feed to see if you like it.