Currently shifting weight to the nose of the board during the edge change, unweighting the tail (tail not on the ground in extreme cases).
⤷ The tail is useless when unweighted: not generating bend in the board, not gripping or moving snow means it's not helping with speed control, not creating turn shape or changing the direction of your momentum
Head position in front of knee (at initiation) is an indicator
You're immediately pivoting over the front foot, with the tail skidding across the slope until after your heading goes past the fall line.
⤷ Residual rotational momentum in the upper body later in the turn
⤷ Losing half the turn to control the speed, resulting in involuntary acceleration on a steeper slopes and a need to compensate via more "side slip" towards the end of your turns to try to reduce speed.
⤷ Losing grip at initiation means you have to try extra hard to regain it. High edge angle is a result & indicator
You're doing fine on mellower slopes because less speed control is required:
- probably feeling more patient and less rushed to pivot in order to control speed. Remember, fast pivoting is energy intensive and not as good at speed control as a longer duration slide with less board angle.
- With less gradient, you're able to keep speed and turn size/shape consistent down the run despite only a portion of the turn contributing to control.