"I personally don't think a PMTS short turn is useful or even possible on steep irregular terrain"
I can tell you that it does work everywhere. It is now the only turn that I use. The better example is to wtach Harald ski steeps, crud bumps and all types of hairy and scary terrain. This is the only turn he uses and he skis this stuff effortlessly. I am aways from effortlessly but that doesn't mean the turn doesn't work, just that I need to get better with it.
In steeps I really don't know of anything else that will allow one to ski without building up so much speed that you are now doing Super G turns on ungroomed terrain. Short radius turns are the only way to control speed, and to address Gary's point, they have to be done with a soft (less angled) big toe edge (although with a cranked LTE).
Having said all this, I know Jim is groaning about where this is starting to go!!
The good news is that everyone is psyched about ski season, everyone is focued on technique and on improving their skiing, and everyone has tools (often new) that will help in our quest to be the best skiers that we can. Pretty Sweet!! Now where's the Snow!!!
Just curious how you would use short radius turns in on this kind of terrain- pitured above.