Looked to me like there was NO fluid in there, so I took the reservoir off and found a little (certainly not half). There's a little marker line that may be for level (?) but it's even below the bottom of that.
So replace or rebuild? $ vs. $$$ Decision, decisions
Considering it's nine years old, it "may" have lost fluid, and it doesn't work like it's supposed to, guess R&R would be the best route.
Thanks for the feedback (and part no. refs)
{Hmmm, guess this stuff should've been posted on the "Part Two" thread...}
{edit} CAUSE: leaking RH actuator (documented HERE). R&R. Fixed!