Since I live within 5 miles of several lakes, rivers and put-in sites I cartop my Outback right side up on foam blocks.  I load it by dropping the stern keel on the ground and lifting the prow up onto a simple roller system that I built.  I noticed however that due to rubbing the stern keel on gravel, concrete, asphalt, etc during loading that I was developing a bad case of "road rash".  Farther, on several occasions the rear started to slide backwards as I was raising the front - puts quite a strain on an old back.  I worked out what for me is an easy and effective solution.  I went to the home improvement store and bought a cheap (about $5) pair of rubber knee pads.  I then replaced the included elastic strap with a bungee.  It works great - no rash and the yak tail stays where I put it.  However, please remember to remove the pad before you put in.  Believe me - leaving the knee pad in place does NOT improve your speed, your steering, or anything else.  Following pics should explain.
