Wool may be better in a humid climate than cotton but also more prone to insect damage...  How about using synthetic "wool" threads (made from nylon or some other plastic)?  [I guess this is what BluErf meant with "thick nylon threads" rather than solid angling line.] 
 
However, I doubt that the wrapping material makes any difference for those of us with indoor humidity of, say, around 70% or lower (and fairly stable temperatures). 
 
Regards, 
Kai
		 
		
		
		
		
		
		
		
	 |