I think the "Xiao'an reading tips" is really useful. So you want to highlight (in the article) every questions and then review them together. And you want to get some new article's to practice the tips, such as GMAT 64-177 etc. When you do the new passages, you want to try to guess where the ETS will make a question. But realisticly, when I did real questions, I didn't think that much. but I did pay a lot of attention to "comparison" , "similarity" and "years".
I think your plan for reviewing those (same kind of) questions together may be helpful because I didn't review them. I just did once.