Link to Peter Lynn's Discussion of Buggies, Boats and Peels. Lines can be easily adjusted when flying using the built-in cleat system. You can use regular spectra if you're using them on land, but the Power Line is highly recommended for water applications because of the increase stiffness of the line to prevent bird-nesting of the spectra while not under tension as it lays suspended on the water.
Power is derived from applying brakes to the kite instead of from forward speed like a foil.
They will drop right out of the sky if you try to fly them beyond the edge of the wind window like a foil. These kites are powerful and easy to use with performance matching and bettering the very best traction kites in the world. We are testing. Generally our experience is that there are few valid requirements in traction kiting for pull of much above the fliers body weight hence rod diameters are set for each size kite so that compressive distortions don't occur until the pull is greater than about 1 O0kgms. Larger diameter stiffer rods can be fitted during manufacture or at any later stage.