The "GEL" effect, on a typical book around 200 pages, with a comprehension goal of 75%-85%, can occur within 4-5 Activation passes, not 4-5 seconds.
We use the term "GEL" to describe the point where, you have when you've spent enough time manually activating the information, it all comes together at a conscious level, and you experience it at a level that's normally difficult to get to with regular slow reading.
Sometimes, the entire book GELS, and you consciously recognize you comprehend it at a level that satisfies your purpose for reading. Or, you'll know where you want to go back in and activate more details with Rapid Reading.
Other times, you may have 4 or 5 30-minute activation passes, and still feel like you're not getting anything. But then, on one of the next activation passes, the whole book will begin to GEL.
And the best part, you will have spent a 1/3 to 1/5 of the time you would have normally spent with regular slow reading, and you achieve better comprehension with improved retention.
With fiction, you probably wouldn't want to spoil the storyline by activating the entire story from beginning to end, in layers from whole-to-parts. For pleasure reading, you will want to Prepare & PhotoRead the book the night before you plan to go through it. Then, the next day go right into Rapid Reading from beginning to end. You'll find your speed will fluctuate quite a bit, as you flow through the text. And your mental imagery is greatly enhanced.