Also, many Cross Country skis that might be used for XCD, IHMO, have too much camber to learn to parallel turn on. You really have to push those double camber skis to get them to turn at all and that's going to be a tough way to learn to parallel turn, or tele turn, for that matter. Not saying it can't be done but you won't be doing yourself any favors.
I love the tele turn but I will admit that I've gotten pretty fluid in my turns, going back and forth between tele and parallel depending on how close I am to wiping-out. When things are going nice and smooth and the snow is being kind, tele comes very natural. But, when it starts getting icy or crusty a lot more parallel turns creep in. As someone else said, tele is about going with the flow. If the flow requires you to push a parallel turn, or switch mid-turn to keep from washing out, push, switch, whatever it takes. Free the heel, free the mind.
And, I always keep in mind my basic axiom of skiing: 90% of skiing well is skiing in good conditions. You can't always have good conditions and may find yourself wondering "What the hell is wrong with me today?" If you're comparing your performance to a previous outing, don't forget to compare conditions. It cures a world of frustration!
