I am preparing as well, but i am not sure if photoreading can be helpful beyond the relaxation and focusing techniques. On my first practice exam(the one with the catalog) i scored 164(my goal is 172+), mostly from games and reading comp, arguments are new to me. I find that reading philosophical journals, think-tank publications, and other analytical works is a great way to score higher on the reading comp. As for the games, they are just logic puzzles, the best approach is to work on puzzles harder than the ones appearing on exams (get a logic puzzle book) or competetion math problems (USAMO, IMO, AIME, ASHME,W.L Putnam Exam etc.). Good Luck.

P.S.- i photoread the section first, just for fun.

p.s.s- read online guides, for example www.soyouwanna.com