US Unconventional CPI - 2025-08-11

The alternative CPI measures are a little harsher than plain-vanilla CPI. There is a sharp division between "flexible" and "sticky" sub-aggregates. The "flexible" are above target and the "sticky" are below. So how are we to understand this? Aren't the "flexible" ones the goods and services that are most sensitive to changing conditions? Shouldn't they have more predictive value?