While taking stock of my rigging/un-rigging times on my 21' boat, I noticed last year that I saved quite a bit of time when I left the jib hanked on to the furler when rigging for towing. Although the jib is new with a sunbrella cover built in, my sailmaker is quite emphatic about the wind damage that could be done to the sail at highway speeds in this manner. How many of you with headsail furlers tow with the sail hanked on? Of course, in the off season the sails are stored away, but my last trip required setting up and breaking down several times in a couple of weeks and a total of 3,000 miles driving round trip. In 100+deg weather, any time saved in the process of setting up/breaking down could be a lifesaver. What say you, my experienced trailor sailors? Is my sailmaker right, or could I be saving time and effort safely?