I'm currently running an R62 and saw an add for a 2000 9750 w/ 1700 separator hours that caught my attention. I've never run the STS so I'm wondering what kind of capacity difference there would be b/w the 2 machines. Also, I've heard horror stories about the STS machines being gutted by something as simple as an auger finger getting sent through them. Soooo, what would you look for/be afraid of on the early STS series?