Keep the distant comfortable so that you can turn the pages without having them brush against your nose (it gets a bit ticklish ).

Toby the question you need to ask yourself is it comfortable for you? Do you notice the four corners of the book when you do this? If yes then it's fine if no then you might want to try some adjustments. Go without the blip and soft gaze only.

With reading glasses it could be a habitual response. Whenever you put them on to read you habitually focused through them so going for divergent gaze may be a little harder over that distance since the center is the optimal focal point of glasses when it comes to reading.

It wouldn't surprise me if in time the blip becomes apparent for you at any distant with or without glasses. PhotoReading is in part training a muscle to respond more flexibly.

AlexK