Yes, inconsistency leaves me open for dutch booking, which perfect consistency would not. Eliminating that susceptibility is not high on my list of self-improvements to work on, but I agree that it's a failing.

Also, perceived inconsistency runs the risk of making me seen as unreliable, which has social costs. That said, being seen as reliable appears to be a fairly viable Schelling point among my various perspectives (as you say, the range is pretty small, globally speaking), so it's not too much of a problem.

In a hypothetical future where the technology exists to radically alter my values relatively easily, I probably would not care nearly so much about flexibility of viewpoint as an intrinsic skill, much in the same way that electronic calculators made the ability to do logarithms in my head relatively valueless.