James much of the seeming contradictions and discrepancies comes from the fact that weight and pressure are not the same but often used to mean the same thing. Weight and pressure can also be artificially shifted around for different drills to work on different skills.
Generally speaking, we want weight to move towards the inside ski and pressure to build under the outside ski. Depending on the dynamics of a turn, weight and pressure can be the same, or different between feet at crossover.
Here is where the confusion comes in. Most skiers move weight and pressure to the outside ski to start the turn and then move the weight to the inside of the turn. A two step rotary pushoff if you would like.
Taking pressure away from a ski, moves the weight towards that ski and builds pressure under the opposite ski. If you take pressure away from the new inside ski, the weight will move towards the new inside ski and pressure towards the new outside ski.
Moving the weight over a ski to increase pressure, is the opposite of what we want. Pressure and weight are moving in the same direction. This is the classic weight shift.
Since we want weight and pressure to move in opposite directions, we must decrease pressure (lighten a ski) to move weight. This is true for both the inside and outside skis. If we move our weight over the outside ski, we have increased the pressure but moved the weight in the wrong direction. If we move all of our weight over the inside ski, to increase pressure at crossover, we have once again moved weight and pressure in the same direction which is equally bad.
More confusion comes in with drills designed to work on different things. Isolating some skill and movements in order to allow work on other skills is the goal of drills. Often weight and pressure will be aligned so as to eliminate the constantly changing dynamics between the two so that we can work on other things like edging.
Examples would be Harbs Phantom move, where 100% of the weight and pressure are on the outside ski verses his weighted release drills, where 100% of weight and pressure is on the inside ski. The weight and pressure are aligned over opposite skis in these drills to work on tipping the skis. This is not the way we want to ski but as a drill, isolates the pressure weight relationships so that ski tipping may be worked on.
The relationship of pressure and weight changes constantly throughout the turn and can be drastically altered for different intents or dynamics of a turn. Herein lays another area for confusion. Talking about the relationship of pressue and weight in a static exercise can be very confusing if the recipient doesn't understand where in the turn the static relationship occures. A snapshot of some point in the turn. If you are confused in a clinic, ask the clinician where in the turn his pressure/weight relationship applies.
In general, the new outside leg is actively extended in the last third of the previous turn to get long and build pressure but, the weight is moveing towards the new inside ski as a result of relaxing the new inside leg to decrease the pressure under the old outside foot. If not, the weight would simply stay over the new outside leg adding to the building pressure and the extension would be vertical. This happens a lot.
Bottom line, pressure and weight are not the same and generally move in opposite directions because of specific movements we do to make the do so.
[ February 13, 2004, 08:27 AM: Message edited by: Pierre ]