I used the powerscore bibles and although I did not follow it exactly I found that it was helpful to learn some of every section weekly. I started doing weekly practice tests at the same time that I started studying, so I found that it was helpful to practice what I’d learned from my readings in every section of the test, building on it week after week.
If you did it one at a time I would assume that it would be better to break up practice tests and focus on the sections you are reading about, however this would likely impact your stamina to withstand completing an entire LSAT. Alternatively, I would be concerned that if you did the full tests that you would not get enough out of the practice sections that you have not read anything about. I would also wonder if this might lead you to become comfortable using methods that may not have the best results, forcing yourself to unlearn them later.
Obviously this is quite biased as I’m not sure what 7sage recommends, they may have a schedule that finds a way around these potential hurdles and there is probably someone who tried it and had better insight. As for powerscore, I had absolutely no issues and I don’t think I would have changed anything. Good luck!