Best 3rd party supplement study material?

I have Schweser and am going back now and doing all of the CFAI EOC questions and blue box examples. Looking for either videos or some sort of guided q&a material to supplement this. Have read mixed reviews of FinQuiz and a few others. Anyone have a good experience with another resource for L3?

Schweser has videos. I used them at Levels 2 and 3. Pretty good.

After going over the sample materials from several prep providers, I would say that Schweser has by far the superior tools to aid in your studies.