As I am an avid user of crow quills myself, having fitted them in my own harpsichord 10 years ago, and in several instruments for clients, I'd like to add that the suppleness and longevity of a good voicing in crow, or quills in general, can be extended through careful application of Ballistol on the underside, with a wee pinsel. Courtesy of Denzil Wraight, who did an extensive test, see the relevant article on his website. 

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
Note:  opinions  expressed on HPSCHD-L are those of the  individual con-
tributors and not necessarily  those of the list owners  nor of the Uni-
versity of Iowa.  For a brief  summary of list  commands, send mail to
[log in to unmask]  saying  HELP .
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::