Awsome, thanks again Scott.
In my research several months ago, I actually had a passing thought about that possibility of doing away with a Gigabit switcher (if ever using more than 2 computers via ethernet) & looking into dually ethernet cards on the master...totally forgot about that idea
I doubt I'll ever go more than 3 computers total under 'any' method. And my next build (after this 2nd quad build I just did) is going to be an up to date high spec'd machine...which at that point, I'll weigh in the usefulness of either of my 2 current quads as slaves....or not.
And by the way, the old way of 5-pin midi & audio via audio/midi interfaces isn't so much a problem...I only have 1 midi out cable from master to slave, and 1 light-pipe adat coming back as audio...hardly a mess, especially that my all my Aardvark audio/midi cards are stacked/mounted in an open rack. Very short midi/audio patch cables, works well too. My only thoughts of concern is what's better in terms of latency/jitter (which isn't a problem now), and of course ethernet's ability to 'save as' in 'one project' in the master DAW is attractive.