It's great to do the same games multiple times (you get way more out of it that way), but ....
I don't think 10 tests, ie. 40 games, is a big enough sample size overall. In addition, there are some newer (nastier) question types on more modern tests that you wouldn't be seeing if you were only in the 40s.
You should probably get in addition (at least) the 62-71 book or the 72-81 book that's forthcoming this fall.
20 tests would get you 80 games, which is ... decent. I'll be honest, when it comes to Games, people often do more than that, but I think if you actually mastered all those games, you'd be in pretty good shape (it would just become hard for you to tell how fast you'd be on a brand new game, if you were stuck doing the same games many times over).
You can also take advantage of the 40 or so free logic games we offer on our website (the LG Online Challenge).
https://www.manhattanprep.com/lsat/stud ... gic-games/