I came across a bit of info before putting the order in for a couple of the drives for OWC about external hdds connected via usb3 not behaving correctly in Lion and ML. Did a bit more research and haven't found a definitive answer but did find the these issues of external drives not spinning down on system sleep, ejecting on sleep and not remounting without a restart have been a problem for some people for ages. And some folks put it down to cables, others say its the chipset, and also OS related. Also not just limited to usb3 connections. Some of these other cases I think are pretty isolated but my impression is there has been a common issue with usb3 on macs. So just want to know, are there people out there running the Elite Pro drives without any of these problems? Bonus points if you can indicate what sort of speeds these enclosures give you with your drives!