I don't think I can get that out of mine but maybe really tightening down the luff, I'll try that. How far off the wind do you find it effective, Ron? My main problem is trimming it. I'd like to put some telltales on it,...but I don't know where I would locate them. Just aft of the luff, like a spinnaker? How do you 'trim' yours. Thanks for any help.