slightly to either side

[Eway]

"It is best to apply technique to a broad portion of the relevant reflex area. To work the spine reflex area, for example, make a series of passes to one side of the reflex area, followed by one down the center, and then one slightly to either side."

What does "slightly to either side" mean?

[Anglika]

Presumably "to either side of the reflex area", in this case the spine.

[Eway]

I'm still confused. Is it saying that firstly you apply the technique to one side, and then to either side? Why not both sides if a broad area should be covered?

[Anglika]

Can't answer that. The text quoted is a bit obscure. Does the following text make it any clearer?