Innsbrucker,
Don't do it!
It looks much too hard to me. I remember you said you thought you were about the same level of skier as me, after you saw my U-Tube video, and I wouldn't go down that. It's the fact that it's so narrow that puts me off - you'd have to make masses of short turns to get down that, or side-slip the whole way
And it's dead straight, with no breaks in it to have a little rest, or make an emergency run off to the side (like a runaway lorry).
I can't remember if you said you've ever had a serious ski-ing injury, but I have. I couldn't use my right arm for 6 months after I broke my shoulder, and ski-ing something like that at your level of expertise is just too risky, in my opinion.
So, if I was you, I'd go and find a piste a bit easier
With a bit of luck you've got years of ski-ing ahead of you, so you've plenty of time to improve sufficiently to get down that piste without risking your neck (or the neck of others below you).
Best Wishes,
Ally