Assumptions of 2-bond hedge: 4 or 5?

Schweser gives 5, while CFAI gives 4?

There are several differences like this between Schweser and CFAI… I am sticking to CFAI.

Another is that Schweser includes self attribution bias as a separate emotional bias resulting in 7, while CFAI doesnt and has 6. CFAI includes self attribution in overconfidence.

SCH 4&5 are same…