Ah, a technical question. Thanks.

Well, the reason for labelling the whole wave 2 correction as an WXY instead of an ABC is because the first leg (until the purple, encircled w) looks like a complex correction to me. In the sense that it is not a flat or a zigzag. The first, red wave (a) of purple, encircled w looks like a double zigzag to me. The following red wave (b) also looks like a double zigzag. Red wave (c) may even be a triple zigzag. Therefore, the first leg of the wave 2 correction must be a wave w. Encircled wave w is then followed by an encircled wave x triangle and encircled wave y, where we're in right now, will most likely also consist of a complex pattern, meaning: after this impulse down, a correction and another impulse down should follow.

I agree that what I've labelled as an orange b-wave can also be labelled as a wave 4. So far, my preference is with the current count.

Is your point perhaps that wave w should subdivide also in an wxy and not in an abc, because then, I think, you are right. Although, it is a minor issue.