I've been fletching with 5" feathers for 10 years now and have been thinking about going to 4". The trend seems to be toward shorter fletching. I was just looking at some posts on the Bowhunting forum with photo's of crested arrows, and they were all 4" or shorter!! I recently tryed to install an Ultra Rest for use with my 5" feathers, and 3/4" of feather was lying in the launcher. I decided against completeing the installation, as I have 2 dozen freshly fletched arrows sporting 5" fletching. What are the pros and cons of going shorter???? I shoot 50lb, with 29" draw. DEERJOHN.