i have a total of 7 cuttings.....4 have definite signs of life and pretty sure they all have small roots going on. 3 of them haven't been doing much.....granted the ones that are doing better had leaves on them to begin with and the one piece of stem that didn't have any leaves was alot bigger in diameter.
anyway below is a pic...looks like the top one has some life left in it. i see splotches of yellow in it but not so sure about them overall.
as for age...id say these cutting are about 4 weeks old.