Robert Bruce?s Treatise vs AD / MAP

[Adept]

Hello,

I wonder about the different books / approaches.
I understand that AD and then MAP evolved from earlier concepts and ideas, aka the treatise.

Yet, the shorter and easier way presented in that book seemed completely reliable and effective for him, so its interesting that he added more and more ideas and techniques later on.

To those who know / practiced with the Treatise-book, is this enough (so to say) to ensure success, if you stick to it?
Or should one better go with the more elaborate, longer technique sequence as presented in AD or MAP, right from the beginning?

Thanks for any insights!