Rick, since you are in MD I'm thinking you might put your orchids outside in summer and bring them indoors for the winter?
Since they drain and dry out easier, mounted orchids need more watering, and generally more humidity to thrive, I think. Unless you have a greenhouse where you can keep the humidity up in winter for those Phals I'm thinking I'd favor a shallow clay pot with some vents in it, over a basket or mount. The clay holds some moisture and would help maintain humidity around the plants in winter.
Outdoors in summer, where you can spray them with the hose, there's lots of air movement and generally the air is probably nice and humid anyway, it wouldn't matter so much. Same with growing in a greenhouse.
