You're right, I haven't skied them, have you? But I have skied snowbird, all of it. A ski with a fat soft tip and a huge amount of sidecut is going to suck in crud. 90% of snowbird is crud, 90% of the time. That's what happens when you average over 500 inches of snow at one of the mountains that gets skied out the faster than anywhere else in the country. Meaning your Elizabeths, which everybody thinks is great in powder just because they're fat, when really sidecut sucks in powder (look at the revolution in powder skis, starting with the spats), are going to be no fun after 10 o'clock. Snowbird doesn't get groomed, at least the fun stuff, and that's why it's such a great mountain. But when it doesn't snow you get bumps and chops. Get a straight ski, it will plow through the crud rather than bump around on top of it. When you're trying to ski out of a drop at the top of the cirque, making big fast turns is going to be impossible. The 139mm tip is going to hook up. Look around the tram line, what do you see, Gots, B4s, Bros, BC's, they all have very small turning radius'.
Don't buy a ski for the hype, it's designed for bc booters, how often does anyone here actually hit BACKCOUNTRY booters? There is a reason pollard still skis the prophet. The elizabeths are fun for jibbing around spinning. But if you want to actually ski the mountain, you'll want a straighter ski. If you can have a quiver, then by all means get it, i'm sure it's a fun ski, and fun to mess around on. I don't know you, but if you see snowbird how I see it, you'll want a different ski to actually ski that mountain. Just my 2 cents.