Worth doing checkpoints?

[sin0001]

I've done all VCAA exams in the study design, so I was wondering if checkpoints have some new questions that aren't VCAA questions?

[Greatness]

Most if not all the checkpoints questions for methods are from previous vcaa exams, you can do it if you want but id rather do some different company exams. Also there are a lot of errors in the checkpoints books -.- so it can get frustrating!