Observations from a noob:
I just checked my two phals...which I've owned for a few months....
The NOID has 10" mature leaves that are much more firm than the 6" and 2" younger and still-growing leaves above them. So, yes, these newer growing leaves are more limp and thinner than their full grown sisters.
The Red Jewel has more firm younger leaves in comparison to the NOID. Could be that plant is not in good shape as it is recuperating in S/H, I can't really say, but the young leaves are much firmer than the NOID.
RosieC, Your avatar is captivating.
Have fun all....Mike