I agree completely with Jim, Heath. You and I have about the same sun, but that's probably all we have that's comparable. I have hundreds of orchids in "tree-shelves" and in community hanging baskets. All are under large oaks. Last summer, I moved my two old, large Vanda to full sun but by mid-July, I had to back off and put them back under the trees so that they only got full sun after 3:00 PM. They were much happier that way. None of my orchids, regardless of their family, get sun between 11:00 AM and 3:00 PM. They all simply get dappled sun, but that is much more shade than sun. I do like for them to get early morning or late afternoon sun, but with so many plants, most don't even get that much direct sun.
As Jim said, you might have to experiment some. For me at least, I would ere on the side of more shade than more sun. I hate sunburned leaves. Talk about ugly lesions.
