The drinking straw is supposed to have the greatest drag on a front hydration system so you cut it short. I have seen some people with a aero cover for the straw ( looks like a small wing) anybody know where you can get on or if it helps at all? Is it even worth the effort?
Torhauns sells them with there aero bottles. Not sure if you can get them seperate or not. I have there bottle and have loved it besides a little splashing.