I am sailing a Tornado. Upwind it is very difficult to get the upper tell tales at the wind side streaming? I am not sailing too high as the low tell tales are all right. If I pull a lot of downhaul at the jib it improves. Sometimes it looks like the luff of the jib gets more loose when hard on downhaul and sheet of the main? Not very logic I think. Mastrotation has no influence. What can it be?