I'll let you all know what happens. When I repot next spring I'll try these. I typically use either clay pots with slots (hard to find now-a-days) or plastic pots which have slots burned in them. I just thought since I have these anyways I might try them.
Just repotted 3 orchids into these so will let you know. Can't believe there will be a problem, and with big-box stores selling these, they tend to be cheap.