Last night I tried a front T stop on my left foot. I struggled for half an hour, and didn't get very far. I suspect it will take many sessions to learn to use that outside edge correctly. I can do a forwards one foot outside edge hockey stop on either foot, but this T stop is tough.
I can do a front T stop on my right foot, and a very useful stop it is too. I see figure skaters using it a lot, but I've never seen a hockey player using it during a game. Only one hockey skater I know can do it, odd since it is useful.