Yes, Themis sets are harder and at times poorly worded. I am consistently getting about 10%-15% lower on Themis than on real problem sets. Other posters have also mentioned that Themis problem sets are based on your past performance on other problem sets.
Samarcan wrote:What's the concensus on the question if Themis practice multiple-choice questions are harder than the actual Bar Exam questions?
I'm averaging roughly 60% correct, consistently, on Themis's MBE questions. I figure that with test-day stress, that accuracy % will dip down just a little, but also that the actual questions may be easier? Kind of terrified b/c I think I'm right at that minimum accuracy level needed to pass for the MBE, and am hoping the inevitable test-day anxiety-induced errors will not doom me!