I am that old, born just after the Second Boer War, ( I jest, just after the Second World War actually), that I remember the precursor to those two Books, called "Equipped for Every Good Work", which was a heavier work than the later two, which were successively dumbed down.
I remember being on a "Bible Study" with a young feller, when I was about 12, taken by a very young Pioneer girl 16/17, the young feller's mum had asked the local Vicar to sit in on the "Study", afterwards he attacked what the young Pio. had been "teaching" and I looked up the pertinent pages in the "Make Sure" Book for her to use, and passed it to her, she didn't have the nous to use what I gave her, and to the young feller's mum, it seemed as though we as J.W's were beaten by the Vicar. The "Study" was stopped. Looking back, that young Pio. girl, by being ill-equipped did him a favour !
Years later, a Bro. and I were doing "Street Witnessing" in a local market, we started doing that long before the Org. advocated it, and I had a run-in with a Catholic Priest, I showed him in the "Reasoning" Book the bit about Apostolic Succession, he glanced at it, and said "I can show you quotes from many Scholars that disagree with what those Scholars say quoted in there", I was stunned, I thought what I had shown him was a clincher ! and that should have been the start of "waking me up", sadly, it was not, but it did put doubts in my mind about quotes used by the org. !
Those Books were only of use with uneducated members of the Public.