Yep I have the airbag with necessary gear and I will be doing the avalanche course.
boilerplate icy wind scoured ridges, Like sastrugi? Any pics?
u mean a swallow tail will make it hard to hold an edge, or hard to make subtle turns?
I thoguht of getting the swallow tail one coz it gives more stability during high speeds
yeah sure like sastrugi, or just plain ice. A swallow tail will not give you more stability during high speeds. A swallow tail makes it easier to turn in deep snow, since there is less surface area.
If you are in, or trying to traverse, a 'no fall' zone you will want to have a stiff board with great edgehold. I don't know about the notch, but softish powder boards are not what you want.
btw an airbag will not protect you from rocks