I hope Auther [feather man] will chime in . I love the things allso , its the only fletching Ill use.
I use boning fletch dry powder allso
To clean or straightn out feathers , I clean them gingerly with soap and water , rinse , and blowdry um with the wifes blowdryer , she loves it .
I have heard others useing unsented hair spray , and scotchgaurd to keep feathers dry .