Steve - I see you live in INd. I live in SW Georgia and my conditions are just about like Mauro. Poly opaque plastic covering w/shade cloth year around and a second shade cloth during the summer months. Except his winter is our summer and vice versa. High light but never direct sun. I have about 75-80 Cats or Cat crosses which I am sure is a lesser amount than Mauro. How do you grow yours? I don't have the years experience as Mauro but my orchids do very well.