SS 15 Reading 41 - When to use cash duration of 0.25

So whats the consensus on this forum about when to use cash equivalent duration of 0.25 or some other cash duration? CFAI text is not very clear about it. There is a blurb on page 367 about it.

onelasttime Wrote: ------------------------------------------------------- > So whats the consensus on this forum about when to > use cash equivalent duration of 0.25 or some other > cash duration? > > CFAI text is not very clear about it. There is a > blurb on page 367 about it. Wouldn’t it be given?