The planform often has more effect on tip stalling than aero-twist will. Since the Dirty Birdy has a slight taper to the chord, and was designed to be able to snap (so the wing was made to more easily tip stall than not) whatever effect won't be enough to change what you'd have gotten with the original airfoils. Or what that planform is going to do. Which is more often stall from the tips.

Anyway...... with symmetrical airfoils of the same family, thicker usually stalls at greater AOA. But if you look at the original plots NACA made back in 1931, you see those two stalled at about the same AOA. Same chord test profiles used, same tunnel, same atmospheric pressures, same RN. One went slightly over 22degrees. The other went slightly more than that, but obviously less that 23degrees.

Since your real life setup has one with less chord than the other, that might have more effect than the airfoils do. And the planform is going to have it's effects that a half-degree difference in stall angle won't even phase.

What might the change in profiles do in the fairly complex "environment" they've been built into? Probably nothing much compared to the effect the planform would have.