Very nice to have you John, and you are right about the helpful people here; I have learned a lot in my 6 months here.
I'm sure someone more experienced will weigh in, but for now I will just say that I have collected quite a few phals and most of them are doing pretty well. I live in a dry climate, so may be different than you, but I reserve misting for the aerial roots--I feel that it would be too easy to get puddles in the leaf axils and end up with crown rot. I think cranking up the humidifier in dry weather does more good.
I use a standard urea free orchid fert like you mentioned; everyone seems happy.
My mix is small coconut chunks, chopped sphag and a small amount of expanded clay pellets (which I also use for s/h culture on other orchids). The right mix depends on your conditions and how often you want to water, so it will be different for everyone probably.
Do you have all phals? About how many so far?
Again, welcome. We're glad you're here!