GIPS- Pre-Liquidation After Tax Modified Dietz conceptual, concerning, question, believe

eagles_dare13

Hi,
There’s this calculation intensive section at the end of the GIPS chapter concerning compliant after-tax return calculations.
The LOS’s do not cover it explicitly and I believe that Schweser does not even mention it.
Still, I am inclined towards being ready for a plug and chug (or conceptual) question on the subject.
What do you guys think?