On Pg. 6 it looks like you forgot to add an "it's" or "it is" before "more effective that way".
I've heard that the Japanese language often omits the subject of a sentence and leaves the other party to fill it in via context, so I'm betting that in this case the text directly translated to "more effective that way", while what was really meant was "it is more effective that way". I think I saw a couple of other errors like this (I know for sure that I saw a missing "are" early on in the next chapter), so it's definitely something you need to work on.