In my demo impressions I suggested that you lay off the stick because the physics lends itself (themselves?) to oversteer. Some dudes in Europe took that advice to the extreme and this what they got: You can finish a race without touching the controller.
https://lastchance.cc/pouring-like-an-avalanche-down-ssxs-first-mountain-5887471%3C/a%3E%3C/p%3E
I just booted up the demo to try to recreate this. It will not work every time. I ended up getting stuck just before a short rise about 500 meters from the end—but I did get to Full Tricky without touching the control, thanks mostly to that long-ass board slide on the railroad tracks. I even led the race about a minute into it, too.
No word on what this accomplishes in the full game, if anything, but it shows how much help you’ll get coming down the mountain.
h/t Fahad A.