Gene,
 once you try it you will wonder why you didn't try it before!!!! Of the better reasons why I like it over rubber bands is that you don't have to work it down from the end of the fuselage. then when you take your hands off to feed the next band the parts slip. With the Co-Flex you simply start wrapping where you want to start, and keep constant touch with the parts. Plus, you can control how much pressure you want on the parts. More pressure wrap tighter, less pressure do a loose wrap!!!!

Ken