Epiphytes versus terrestrials

[terryros]

I am 5 months into S/H with a 50 plant mixed collection of Catts, Phals, Paphs, Phrags, and a couple of Oncidiae intergenerics. I haven't killed anything yet and have bloomed some things. However, we never run out of questions. This is a basic question about differences in watering and aeration in different types of orchids:

Facts (maybe): The roots of epiphytes and terrestrials are different. When plants move into S/H the plants must adapt and create different kinds of roots and many of the old roots may die. Different types of root cells develop.

Questions: During and after the adaptation to S/H, do epiphytes overall still need drier conditions at the roots than terrestrials or do they become mostly even and you can treat everything the same? Or, would you optimally let the S/H epiphyte go longer between waterings (letting the water/fertilizer solution in the reservoir go almost dry) compared to a terrestrial that you might water frequently and keep always topped off?