Parachute and Pressure Suit Q's

1. How far did Felix B. have to descend to regain control of his fall after tumbling out-of-control, what elevation allowed this?

2. Was more than one chute used for his jump, and what were the chutes and straps made of?

3. Further, wouldn't the recoil of the chute upon opening at or above the speed of sound subject Felix B. to a G-force "snap"? What materials were the pressure suit made of?