I like the Rev UFO's sliding bridle, as you can use it to get the disc to spin really easilyMy AirYo is one of the mass produced ones, finish is a bit low end and it does pop the velcro open after a number of sharp tugs on the line ...but still great funI am amazed how both of them detect the slightest breeze outdoors, leading to frustrating crashes...er, unexpected landings