In the great majority of cases the heli will not hang vertical in the air, there is a slight tilt. As u lift off the left
skid lifts off first, thus causing the slide to the left. Put small pieces of fuel tubing on each skit at the front and
rear (helps saving the sanding of the bottom of the skids by the concrete serfice) to stop the sliding allowing
the left skit to rise while the right skid is kept from sliding left by the fuel tubing. This also stops the ground
piro when spooling up and spooling down the rotors. (Photos avail upon request).