The Bungee is more for getting the Nose up into the air .With a Thrust line above the wing all 13lbs thrust pushes the nose down until air speed is strong enough to push the back down with up elivator.To set wheels up on a Delta wing means lowering the tail or balancing the wieght over the rear wheels.Lowering the back has problems on landing.Zanin's Sagittario uses wheels only but its thrust line is spot on.The Italian Delfino uses a Canard to solve these problems.Some use a catupult for Delta wings.I will just use a Bungee for now myself & just wire skids for landing.I bought a Ryobi Leaf blower for starting to now & found it Perfect fo the job.