ConfiDry 24/7 for years has been my daytime diaper. Recently, it not only appears thinner, but the texture of the absorbent mat has become a bit "crunchy" and not very compressible. I would venture a guess that they are using less fluff and that the diaper core now consists almost entirely of SAP.
Previously I would shake the diaper out to let it fluff up. That no longer works.

Now it is necessary to massage or knead the absorbent mat to make it more flexible and more comfortable.
A greater SAP to fluff ratio produces a diaper that is not only thinner but absorbs more urine. Being thinner also reduces transportation costs for manufacturers and vendors as they can squeeze more diapers into a shipping container.
However, for me thinness is not everything. I want a diaper that is relatively thin and highly absorbent yet prefer the feel of a diaper with more fluff pulp mixed into the matrix with the SAP.
--John
(double incontinent)