Sidewinder 2 in Helmets October 28, 2005 I jump Skysystems for years now (since 1996). Just ordered a sidewinder 2, after having jumped a sidewinder 1 for several years now. It took only five days to get them from USA to germany (three different helmets for our camera flyers). perfect finish, superior quality. the flip-up lens is perfect and gives all the benefit I have in my Oxygn. only the cam-eye has to be installed, but this is a minor problem. for me, the sidewinder 2 is one of the best choices for filming tandems and formations.