Feedback Reflection Probe time slicing

The reflection probe documentation is rather curious on the subject of time slicing:

"Time Slicing (Realtime type only) How should the probe distribute its updates over time? The options are All Faces At Once (spreads update over nine frames), Individual Faces (updates over fourteen frames) and No Time Slicing (the update happens entirely within one frame)..."

So all Faces At Once may be so, but only at a slow fps (around 7fps at 60fps?)
Individual faces - not sure of the spacing of 6 cube sides into 14!
What is it doing in each of those 9 or 14 frames? 6 frames I would understand better

But it really is every 14 frames, 9 frames or every single frame, just that you may get odd reflection breaks with the 14 setting...

"All faces at once" and "No Time Slicing" is a little odd without referencing the docs
How about "Over 7 frames", "1 Face every 2 plus a bit", "None"?!