RepoToronto

Here’s what i think, CFAI covers 100% of the material you need to know (of course!) and let’s say Schweser covers 85% of the CFAI, but you understand EVERYTHING on teh 85%, your chance of passing is still very high because the actual exam will probably take materials from the 85% (most testable topics) rather than the 15% that Schweser leaves out.
But if you struggle reading the CFAI texts and you may end up only understanding 60-70% of the material, then you are no better off because you are 1) not focusing on the most testable material, and 2) you are stuck on the overwhelming length instead of spend your studying hours more productively, ie questions and reviewing of answers.