The rubber band method of retaining the wing has a very practical purpose--it allows the wing to separate from the fuselage on a less than perfect landing, thus making damage much more minor. However, after getting enough time under their belts that landings that would damage the plane are very rare, some folks still enjoy flying their LT40s or Falcon 56s but do not enjoy stretching a dozen rubber bands and getting snapped across the wrist with about half of them. For this reason, to allow more advanced flyers to continue to enjoy their trainers but not being forced to stretch a dozen rubber bands, somebody came up with the idea of using velcro in place of the rubber bands. It works beautifully and takes only seconds to put on. The only draw back to the velcro method is that the wing will stay on the plane even in rough landings and damage can occur that would not occur if rubber bands were used I really like the velcro method and you can even match the color of the velcro to the color of the plane. Much better appearance than a bunch of ugly rubber bands..