@Dee - wow. That's approaching native speeds over USB. It's a bit of a shame it's not obvious which bridges support UASP and which don't. I'm in the process of getting some more modern USB 3.0 systems up and running, but at the price I paid for my enclosure, I wasn't expecting any miracles! ($16.50 AUD is about the same in USD, considering it was a bricks and mortar store, it was a good deal)
Would you happen to know what chipset was in your USB docking station by any chance? I'm just firing up a B75-based board with USB 3.0 on it, but I doubt the difference will be much.