Welcome to the new and improved Proflex / K2 Tech Forum!
The interesting thing about the 857 is it feels like it accelerates faster. I can't tell if that's because it's actually lighter (it probably is, slightly) or if it's because the gear ratios are different (I think the big chainring is a little smaller on the 857), but it has noticeably more pickup.
Also, I think it's time for some random Pro-Flex-related silliness.What to do with a disembodied Vector fork? Wait, I know! Let's pretend it's a gun!]This is why I should not be left alone for long periods of time, especially when I'm in a good mood.
I thought it was a phased plasma rifle in the 40-watt range...........