Pete,
The early models took a VESA mounting bracket which is what I use.
Just looked it up - there is a different one for the Fit-PC3
See here
http://www.amazon.com/VESA-mounting-...ref=pd_sim_e_7
Buy 4 of them !
I should add - once you screw them onto the pier or dovetail etc - its just a press and rotate to attach or remove the Fit now.
Cheers
Rally