I play a number of styles, jazz among them. But as far as practical theory, I go with the Hal Galper way of thinking - jazz playing was originally conceived of as being based on chord tones, and not scales. The passing tones or extensions you choose to add are at the discretion of the player's ear (or any theoretical method you prefer).This only applies if you play the modes in isolation, i.e. in the style of a Gregorain Chants with no chords to define the sound. I was talking about using modes with a preexisting harmonic underpinning like in a song. Quite specifically, as in jazz which is what I mostly play.
That's where I was getting into the mixing and matching of ancient era theory with modern. It's of no real use, in my opinion. But hey, you gotta go with what you know and what works for you. If you mostly play rock or folk or something like that, modes don't mean much anyway.
In the end, if it sounds good, it is good.
