That takes a large degree of confidence and courage.
First, he's only jumping from 2,000 feet. Now with a parachute which can't be steered that may be necessary, but there is not much margin of error.
Second, with an unknown parachute and design. He doesn't know how long it will take to inflate, or even if it will. By the time he figures that it's not going to happen, he has to deploy and inflate another 'chute.
I'm glad Da Vinci had it figured, and I'm glad it worked. Would love to have seen it. I may check YouTube.
Arf