What is a "Cushion Creep"?
Just a way of transitioning to forward flight using as least amount of power as possible. From as low a hover as possible, just gently ease forward on the cyclic. The aircraft will move forward. Ease the collective up just to maintain height, or allow some run on along the ground. As translational lift takes effect the aircraft will then climb. Works different for different aircraft. When I was flying the Lynx, from a 5-10' hover, it would fly away without having to touch the collective.