Pro sailsVRTool Data: Download as "classical" Download as "complete" (15/09/2014 12:07:19 GMT) Note: the "classical" format does not have complete information of all sails, hence, VRTool can not always propose the most suitable sail. So I designed this format where each value of winds and most wind angles are represented. It is bigger but loads perfectly and provides better results. Thank you for reporting any potential error or differences consecutive to a change in the polar values. You still need to activate VRTool's interpolation.