Cattleyas - How Dry is Dry?

[mopwr]

Thanks for all of the replies. I've taken much of this into account and in retrospect it makes a lot of sense. In looking at some of my conditions a little more closely, I turned up the fans a bit more in my growing setup and dropped the humidity (my estimate was off, it was closer to high 80s on RH). I also increased the temps a bit to closer to 86 during the day, same temp at night.

I think for me, I was more wondering what I could do better, and it seems like based on what was said here, is maybe a bit warmer on temps and more air circulation since it's really not a matter of "it needs to be dry" as much as it "needs lots of air movement"... I think what's confusing is how there's so many places pushing that the media needs to dry out completely between watering. I'm assuming that they give that advice because people tend to overwater, plus, they may be growing on a windowsill with just about no air movement?