HEY!!! Yo bro,
So, Chanting itself is not a personal preference to remaining focused, in that, part of the question Braz has is about focus. It would be agreed on that focus is an important part.
While PR, I don't chant either. I visualize the process of PR itself.
As I flip the page, I visualize the data (represented as water) being sucked into my brain. The water once in my brain forms into an area where it changes and fluctuate into different things. When I'm done, the water become as a block of ice as my brain starts analyzing the information from each angle. Its not a linier stream like a scroll, but a cube of data.
Hope some of this helps Braz,
TTFN Allen,
Blk