Ball position would be the first place I'd check, then alignment, plane and clubface.
Thanks for the thoughts. Ball position and alignment are formulaic for me and my routine is fairly effective. But denial is not a river in Egypt, so I'll triplecheck them. I'll get on the launch monitor, too. That will give me the real deal on Approach and clubface at Impact. It's just odd because the ball goes dead straight (right). I used to get a straight flight with a tiny drift to the right from the Hinge layback. The drift is gone, too.