If you apply it as I did, every hour on the hour throughout the day (see other threads where I talk about that in detail), you will not get patchy results. It takes commitment to do the gel method, no doubt about it. But I am in Japan and therefore cannot buy large quantities of H202 on the cheap. Hence, it was impossible for me to dip an entire compact Mac enclosure. That is why I used the gel method. And again, if you do it correctly (i.e., as I did it), you will get great results (assuming you do it on a sunny day).