Originally Posted by dchan
Care to elaborate?
The problem I have is there are several ways to leave these sort of tracks. I'll shot-gun three.
The "lousy" pivot slip: An excellent pivot slip would not take you across the hill at all. The skiis appear to be sliding through every part of every turn except neutral, where they wind up parallel and making clean tracks.
That can be done if they are parallel at all times, and turned via pivotting/steering only (no edging.) The presence of edging at the end of the turns lets me say "lousy" pivot slips.
So assuming the skier was actually realizing their intent, there are two other options:
The basic parallel turn: Another way to think about making these tracks, is that they are steered with progressive edging after the fall line... The edge angle stops short of critical angle - there is always skid. When you want to steer the other way, you get the clean tracks between skids. Such tracks would be consistent with the "basic parallel" turn.
"Left tip left":These tracks may also have been made by a gliding wedge that gets closed before transition. I was reluctant to suggest that because very few do these turns properly -- there is USUALLY evidence that the BTE of the old downhill ski remains engaged at initiation -- in the worst case, throughout the turn. It is very unusual to see the inside ankle released at initiation.
Having said that, they could be left by someone practicing how to break out of their gliding wedge with the instruction "left ski left to turn left" etc....
I would suggest in all cases, (including the skier that made these tracks), the skier is not skeletally aligned, but was muscularly supported instead.
My original statement was "minimal edging max rotary" -- IOW, the task was displaying a basic parallel turn.
How'd I do?