Hee, hee...I love short radius carving, it is mostly what I focus on. The 7-10 meter SCR are sooo much fun to play with. First off, as mentioned above, SHARP edges, including the nose contact points(the nose will be catchy, but it starts a carved turn much better). Second, know your max lean angle that you can achieve with your equipment and conditions. If it is 30degrees of angle to the snow before bootout, then that is as far as you practice leaning. If you can adjust your bindings to get your heels/toes at but not over the edge and pull 45 or even 60 degrees, your board's SCR will really start working for you. Once you figure out the mechanical limits of your gear and snow, you can start drawing lines like Nick has shown to feel out how much body angle you can lay out, relative to the board's speed and angle to the snow.
I learned from some softbooters long ago, that you can lay out as deep a carve as you want, if you can make up the difference between board angle(ie 30 degrees) and body angle (maybe 60 degrees) using strength, leverage and balance(or, just deeply bent knees).
A trick to practice is: Toilet turns, or T-turns for polite reference
In a clear space where there can be no collisions or other stupid accidents due to your intense focus and someone else's lack of observance...
-assuming that we have some smooth snow of solid consistency(you referred to this as Ice)
-With your freshly sharpened edges and carefully set bindings,
-Strap in and bend your knees(and Hiney) until your femurs(thighs) are PARALLEL with the snow and your body is angled somewhat upright, but balanced(*like you are perched on the toilet*) with weight centered between your feet.
-your Hiney should still be 12-18" off the snow and not sitting on your heels
-Point board into the fall line and start coasting flatbase
- when you have enough speed to hold a "carve", lean your knees (or your hiney) toward the snow, set the board at maximum lean angle and just balance yourself on the edge until the board carves back up the hill and you stop(an official J-turn).
-repeat this step on both edges, until you can positively feel the edge set, and you can BALANCE at the max lean angle(not at boot out, just before) for the duration of the turn
-Once you have felt the edge bite and get some decent balance with the one way carves, you will notice there is some acceleration and G-force as the board hooks up the turn. Get used to this feeling, it is the feeling you are trying to achieve: speed, high angles and G-force
-When you are confident with your first Toilet turns, it is time to link them together
-Start a carve as above, as you turn across the hill, stand up out of the turn and finish the turn at 90 degrees to the fall line(a C-turn, like in Nick's discription above), basically shooting across the hill, then drop back down in to the T-Turn position and initiate the next turn down into the fall line.
If you are carrying too much speed at this point, scrub it off with a little skid and then drop back into the Toilet turn position and lean into the next carve.
As you develop some muscle tone in your legs, you will be able to link more and more turns together.
You will also start to find coordination for fore and aft weighting to squirt out of the turns. Start the turn with weight on front foot and finish with weight on back foot. Remember to re-weight the front foot for the next turn or you will be in the back seat too far.
nuff fer now, film and post the results on Youtube then link it here for us to congratulate you on your progress.
edit for nonsense
