You're right on track. I'll give you some tips on doing each step.
Prepare: Create a purpose/outcome statement for what you want to get out of your book/reading materials. Do the Tangerine Technique.
Preview: Spend no more than 8 minutes leafing through your book cover-to-cover, writing down all and any key words and phrases that catch your attention. These are typically in the chapter titles, bold & italicized print. Then, review the list.
PhotoRead: Do the 3-2-1 relaxation process to enter the "Accelerated Learning State." Affirm mastery over the info and the outcome you want. Then, start flipping those pages in a steady rhythm and comfortable pace, using the 4-3-2-1 chant. When finished, close the book and say the closing affirmations bulleted on page 51 of the how-to PhotoRead book.
Activate: Craft several Mind Probing questions with the trigger words/phrases from Preview, then SuperRead & Dip in multiple 30-minute sessions, going through your book again, cover-to-cover in each pass. Build structure first add to it with each additional pass, one layer of comprehension at a time.
Rapid Read: After you've gotten a good grasp of how the whole book is put together, then shift into Rapid Reading to go back and get all the specific detail you want.
At first, focus on mastering the basics, and the best way to do that is by doing all 5 steps of PhotoReading on 3-5 books you have not read yet. Non-fiction and not too terribly technical.
Questions?