You would think people would come up with another design but everyone seems to copy the centurion. Why is this model better, I do like the 2 vac ports rather then my one. JK
Best bet would be to talk to the people who make it.
But here is a run down of what I know that makes it better:
1. The drum is made out of thinner but stronger material. This means less damage to the bud and better trimmed product.
2. The entire thing is built with a rigid frame, this means you can move it and it won't need adjustment. This is huge.
3. The drum is longer than any other trimmer by around 6" which increases product by a substantial amount.
4. Everything is made in the USA 100%. Twister imports their parts from China and assembles in Oregon. I've been to their machine shop and met his family. They make it all. His daughter cuts the blades, his boys build and weld the cages, it's incredible to see what they can do.
5. It's incredibly adjustable so that you can customize the clip to the specific type of bud
6. This is the one which other are emulating. The adjustable legs, the two vacs, the better blades, etc. This person did all of that first.
7. It comes with a drum cleaner and two drums so that you can keep production faster, cleaner, and more efficient.
8. He is also working on adding an efficiency gauge that will help the operator judge if the machine needs to be cleaned.
The list goes on and on. I know the site looks like crap but thats because these guys haven't wanted to be "out in the open". It's a family business by people who really stand behind their product. It's worth a look.
Someone referenced a "huge" machine previously at the Emerald Cup, chances are it was this one as it has the highest production capability that I know of.
I'd be happy to help setup a call with the guy if you're really interested in buying a pro machine.