Suggestion: Not sure if you usually ride alone or with someone, but I think it makes for a better video when your buddy rides in front of you so you have some contrast in the video and can see how deep it is with someone else riding.
Not saying the videos are bad by any means, it's just that the snow is so deep that all you can see is white. When that other dude was in front, you can at least get an idea of the terrain / depth.
They're at a small resort in Toyama.
Yeah, I hear you on the shooting somebody else for contrast. I do it sometimes, but when it's deep you can't get close to them at all just from the pow cloud. But if I have the choice of hitting the line first, or letting a bud do it first for a better gopro vid, I'll hit it first every time.