When I finally got to go ride the mountains in Japan, it blew my mind.

The whole goal with this thing [Ultra Natural] from the start was to really let rider's style define them and their line choice.

They were all just chapters in the book, stepping stones. Each was perfect for where we were at the time, and I'm proud of them all. We couldn't have done this film [The Fourth Phase] without the other films pre-dating it and being part of the process.

Shin [Biyajima] rides down with this big ol' Japanese grin and giggle and I'm like what? Two years later, when I started planning the trip, I knew Shin was from the Hakuba area, and I didn't want to come film in Japan without a Japanese rider. Shin had the time and availability, and it worked out perfect.

Bryan [Iguchi] had this beautiful philosophy about our connection with these incredible cycles. There's a line from one of his poems that always stays with me about 'This process we follow; this cycle we ride' and it's almost become a strap line for the film.

I knew I wanted to shoot in Japan early on. Years ago, we did a Japan segment in "The Community Project," and at the time I felt it was one of the better Japan segments ever captured.

I knew Shin [Biyajima] a little bit early on, but it's funny because where I really met Shin, and where he made a strong impression on me, was in Jackson Hole. I sledded back to a secret zone way deep in the Jackson backcountry to some freeriding. I got out there and followed some snowmobile tracks figuring it's just some snowmobilers.