pannenkoek2012 found the strat of bouncing on the spindrift after sliding on the green slope: • SL In the Deep Freeze 0xA Using Spindrift ... . I figured out how to skip luring the spindrift as well as optimize it to get enough speed to make directly onto the ice structure without having to divegrind on the other edge. It is important to land on the green slope with an angle almost perpendicular to downhill (but slightly downhill to slide forward and not backward), otherwise Mario will turn too much away from the spindrift and overshoot it. This angle depends on the twirl yaw variable, which increases at a constant rate as you twirl and is not reset between levels.
Note that this is not suitable to be added to 70ABC right now because of twirl yaw sync