What study aid to buy?

I’m studying CFA texts and want to buy practice questions. What’s the best? I’m thinking Schweser Qbank. Thoughts?

End of chapter questions

Look at the examples in some CFAI Readings(like Options) if EOC questions are not enough or I think the topics is very important.

why waste money on third party stuff when there is more than enough practice material in the CFAI examples and EOC questions? if you know the CFAI books you will pass