Hi there water tight ,any suggestions on how you go about hitting a shot,lets say 160yrds and a 27ft uphill elevation,and an 8mph head wind, what would the yardage be roughly, taking all of this into account. And does the same work if the shot was downhill elevation.Please could you explain how you go about this,because i think this is where most of us are going wrong in deciding what clubs to select when your hitting the ball uphill or downhill..... Thanks Cobra4