I currently have a large scale web application and I'm investigating the possibility of using the impressive ASPNET.FriendlyUrls package from NuGet (http://www.hanselman.com/blog/IntroducingASPNETFriendlyUrlsCleanerURLsEasierRoutingAndMobileViewsForASPNETWebForms.aspx).
I notice that in order to force the user to the friend url it uses a 301 redirect to push them from (for example) /MyPage.aspx to /MyPage. I don't want to unnecessarily increase server traffic with extra redirects, will it add any extra load on our servers by utilising this package?