Been wearing the 875 for the past 3 days. The edge of the top, where it touches the side of the leg (near the shin area) tends to "bite". I never had this problem when I wore my 9013 initially. Or could the reason is because I wore the 875 with a low-cutting socks that don't stretch higher.
Well it could be, cos today I wore a normal higher socks and the "biting" feel is gone.
Here are some pics I took while in a lift: