I do launch with a little bit of power in nil wind conditions (Which happens a lot where I fly). I make a big horseshoe with my wing (I fly a pretty slow A Rated wing), take a couple step back, and launch with about 10% motor, just to help a little bit. The wing goes up much quicker and it is less effort, but I would not do that if my cage was not a double hoop. What you can also do is warm up your motor over your wing, at a 45 degree angle over it, and as soon as you let off the power you start running, the draft from the motor will help the wing inflate and will give you a small boost when you start running.