There was a.. well.. undocumented feature (!!) in chest skeletons, which
resulted in the descriptions being incorrect with low-end materials such as
wood, bamboo etc. this has now been fixed. In the future, you can rest assured
that if your chest skeleton desc is NOT at max, adding material will benefit
you (in some way). This was not so in all cases, before.
I guess you could consider this an uptune? Go figure. New bugs with chest
creation after this point should be addressed to me, as (if any) they are most
likely caused by your friendly neighbourhood warlock as well.