David, from my reading on this subject the first thing I would recommend is to go with a “Y” instead of a “T” the reduction in drag will be significant over the T. Also use sweeps instead of 90’s that will really help as well.
I can’t help to much with your baffle dilemma but I’m sure you’ll make the right decision for your needs. I just this past week hooked my 2HP Jet unit to my tablesaw, I was waiting for some sealer I installed on the fittings to dry before using it. I had to go on vacation first(on holiday right now I add that just so you understand LOL). Will let you know this coming weekend how it all works.
I think keeping the 6” for as long as possible will keep your volume as high as possible, reducing the hoses at the tools themselves to my mind will create a venturi effect at the optimum time. Emphasis on “IN MY MIND”.
-- ***Pat*** Rookie woodworker looking for an education!!!