I use the shallow orchid pots, i find the smaller the pot the orchid can fit into the better. The only problem i usually have with orchids is rot, usually from to much rain as there just under shadecloth, except in winter i add plastic.
I add rock in the bark/perlite mix if i need the pot to be heavier, mostly for my paphs. Most of my other orchids are in hanging pots so they can be light.
Wish i could buy Alifor here, can't find nothing like it though.
I like the mesh pots for dens and Vandas which give more air circulation and expose there roots.
I do have a heap of Stanhopeas in spag. lined wire pots that dry out to quick and im thinking of putting them in paper bark lined pots instead.