I think its worth considering the opportunity cost of the proposed situation. The question is....is it worth it to spend hours watching sketchy when in reality, its not likely you will encounter many questions where multiple answer choices were never mentioned in FA. Additionally, there is definitely a strong argument to be made that hours of passive video watching are not nearly as efficient as doing more and more practice problems. I dont understand the hype surrounding all these video resources....at some point diminishing returns kicks in and you would be better off applying what you know to novel contexts (practice problems) rather than watching another set of videos from another company. There are infinite resources and they all more or less help us get to the same point....yet, step scores dont increase all too much because increasing hours of passive learning does not mean you will score higher than if you reallocated that time into more mind stretching active learning processes.