Superman to whole stroke (1.3 in your material?) are pinpointed with a sequenze of FPs to work through and to transform SG to 3-5 strokes. Did your work them through? The "real" work with elbow out and relaxed recovery are in the next step. And if you have difficulties with this step you simply should go on to 1.4.
Think Terry's intention with SG into whole strokes in an early state was more for students already swimming FS-laps. To take as much of the new balance-feelings from Torpedo and SG into their whole strokes with short repetitions, not as mandatory step for absolute beginners.
Happy new year to all readers!