Heather I allow to dry between waterings all year. I do water more frequently during vegetative growth and flowering season and less frequently during the winter but I let them dry between waterings, even now while in bloom.
One of the reasons I initially came to be focussing on only slippers was their shared culture. So, I am learning how to adjust my schedules again. I've been growing a lot longer now (and have many fewer plants) so hopefully I'll be able to handle it. I just tend to mist my Mexis daily and it is slightly tempting to mist the neos at the same time since they live next to them. It will be better when they are all potted in a similar fashion. Right now they're kind of all over the place.
Heather growing orchids has been and is a continuing learning experience for me.
I don't know how many different genera I have in my collection but even in one genus, Dendrobium, there are many different cultural variations.