Hi,
In the beginning, you might not notice such a big difference with the photoreading step, however, with practice and with time the connection between the part of the mind that is active in the photoreading step and the part of the mind which is active when you are consciously thinking and reasoning becomes much stronger and more flexible.
In short: There is a huge difference, but unless you actually learn the whole system and use it all (no voo-doo, no short cuts), then you won't know it for a fact.
If you search the archives you will find quite a few posts which ask this same question, as well as a few very good answers by experienced photoreaders.