Specifically, in the post launch press event, he mentioned titanium cast grid fins a number of times. The video I saw [1] didn't have great audio and I was in

Specifically, in the post launch press event, he mentioned titanium cast grid fins a number of times. The video I saw [1] didn't have great audio and I was in transit while watching, but I believe he also said something about how it would be the largest single titanium cast in production. [1] https://www.youtube.com/watch?v=jC3LQFpuzqs https://www.youtube.com/watch?v=jC3LQFpuzqs