I think it's harder for people who usually read in a intuitive way to notice the benefits/usefulness of the PR step. When I started to learn PR, I realized that the way I naturally 'read' was pretty well a combination of the other steps without the PR step, except I didn't have it formalized into a system, and I didn't even call it reading, as that's not how reading's conventionally defined. Now I read the same way I used to, with the PR step added, and go through the steps more systematically. I haven't noticed a lot of difference using the PR step yet. But I feel more confident doing reading my natural way, usually (not always) with the PR step added, and now I do call that reading.

I do feel that my reading speed has increased, and that it's easier to let go of info I don't need, and the whole process of reading is more efficient. The feeling of confidence is great to have.