Ben- This is Jason From DFA and I have just returned and getting caught up. I honestly don't know much about the simple centrifuge, but do have experiance with the Dieselcraft unit. The biggest problem with the DieselCraft one was finding an affordable pump to use with it. I spent the last 6 months tyring to find th eperfect pump, and finally found it, and just added it to our new site. Again, not sure about the simple centrifuge, but I have found that I still have the best luck preheating and settling my oil for a day, then running it through the centrifuge for a few hours, then through a final filter into my clean tank. BTW, I would be happy to shoot you the contact info for a few of our 6.0 customers, one of which has had a kit for well over a year, and was our first 6.0 kit