One major advantage I have found is that if you screw up and have to take everything off the wrap leaves a whole lot less of a mess. Also makes it easier to track the flight of your arrow if you use bright colors. Couple downsides could be a slight increase in flight disturbance and a decrease in FOC. That is all i can think of but I am a newbie when it comes to fletching. I was wondering if anyone has good ideas for getting the old glue off of an arrow. I currently use paint thinner and a dull knife but that seems to take forever sometimes!