Exam 6U risk transfer analysis: 10-10 rule and NPV

While studying risk transfer analysis for Exam 6U, I noticed that some past CAS Exam 6U solutions imply that the 10-10 rule for risk transfer analysis doesn't use net present value (NPV) to assess the size of losses. This contradicts the source references, including both GAAP and SAP. This topic doesn't seem to have changed since the last released exam in Fall 2019, which is one of the exams where I noticed the issue, so the inconsistency makes it unclear how graders will treat this topic.

The exam problems in question include at least the following 2:

• Exam 6U Fall 2018 Question 25, parts C and D, accepted solutions on relative advantages of ERD and 10-10 include 3 that imply only ERD uses NPV.
• Exam 6U Fall 2019 Question 27, part C, samples 3 and 4 similarly imply only ERD uses NPV.

Source material includes:

• ASC 944-20-15-51: "Significance of loss shall be evaluated by comparing the following: a) The present value of all cash flows... b) The present value of the amounts paid ...".
• SSAP 62R paragraph 17: "The ceding entity's evaluation of whether it is reasonably possible for a reinsurer to realize significant loss from the transaction shall be based on the present value of all cash flows between the ceding and assuming companies...".
• Freihaut and Vendetti (2009): Also state or imply in several places that 10-10 uses NPV, such as when stating that 10-10 rule passing implies ERD at 1% passes, and in section 3.2.4 where they are explicitly talking about both 10-10 and ERD, they state present value must be used.

The following sources make it more explicit for the 10-10 rule specifically, and though they aren't on the 6U syllabus, they are published by the CAS and could be relevant to how they treat the exam material.

• https://www.casact.org/sites/default/files/database/forum_02fforum_02ff305.pdf (see the top of page 317)
• https://www.casact.org/sites/default/files/2021-07/Risk-Transfer-Ruhm-Brehm.pdf (see the top of page 14, "...the loss used in the 10-10 rule is on an economic basis...")

Anyone have insight on how graders will treat this topic: consistent with the source material vs. the way it was treated on the most recent released exam?