It seems the accepted practice for mounting pigment prints is not to dry mount,
but to leave a wide border around the print, attach to archival board with corners and then overmat.

What exactly are members doing in this regard ?
and
What are the specific reasons for not dry mounting ?
and
What effect does dry mounting have, if any, on the pigment print ?

Please share your knowledge based on specific experience or fact (rather than conjecture) !

Thanks very much !