No, I disagree - -

To say that ENTjs and ESTjs would find more natural to use their role function than their dual-seeking goes against Gamma and Delta having as a Quadra value, in fact, invalidates the whole concept of quadras.

There's a lot of talk about people using their role function. The role function is the second weakest function, right after the PoLR. Sure, people will be more inclined to try to use it and improve it than the PoLR, but it's not the same as saying that the role function would be preferred over the dual-seeking.

If we go to subtypes -- an ENTj intuitive subtype would focus more on and start to resemble an ENFj. But the moment that s/he prefers over , then the border into Beta is crossed.