If this has been discussedd, I missed it and apologize.
a single ZCTP could work for dado joints that will be hidden by any kind of face frame (or whatever). 3/4 ply is never 3/4 - I think that's a given. But I recently came across advice for cutting dados into which ply will be fit (where the front/rear of the joint will be hidden): Cut your dado at a single width (say, 9/16 ) and depth (say, 7/16), and then dado the bottom edges of the ply (tenon fashion, ply run vertically against tall auxiliary fence followed by sacrificial backer) - fence set to 9/16, dado blade set a 7/16 height) to fit that width and depth.
a single ZCTP could work for dado joints that will be hidden by any kind of face frame (or whatever). 3/4 ply is never 3/4 - I think that's a given. But I recently came across advice for cutting dados into which ply will be fit (where the front/rear of the joint will be hidden): Cut your dado at a single width (say, 9/16 ) and depth (say, 7/16), and then dado the bottom edges of the ply (tenon fashion, ply run vertically against tall auxiliary fence followed by sacrificial backer) - fence set to 9/16, dado blade set a 7/16 height) to fit that width and depth.
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