– Four Different Calling Surfaces – Deep & Shallow Sound Chamber – Slate, Cordierite, Brass, Ceramic – Wildwood Ash striker The Full Tilt Quad call is the most versatile pot call ever designed. The Variable depth chamber is teamed with a precision matched internal sound board, topped with four distinct calling surfaces. Perfectly matched with the Wildwood Ash striker, the Full Tilt Quad produces the sweet and subtle morning hen chatter, yet has the ability to ramp up to extreme ringing rasp. The Full Tilt Quad performs the complete range of turkey tone variety.