From: Charles Dickman: Tuesday, July 28, 2015 9:03 AM
If the posts and balls are metal, the panel sockets
are going to crack
because there will not be any give in the shaft. If the ball and shaft
is replaced with a solid pin, the panel sockets will get damaged
because the socket will have to flex to conform to the pin.
Ah, sorry. I had not payed close attention to how the counterpart works
and automatically assumed it was some sort of metal spring fitted into
a recess in the plastic panel that clips and holds onto the ball head.
As I see now, it is just a tube-shaped outgrowth of the panel plastic
itself. Phew... Anyway, thanks for clearing this up.
Arno