which Firdaria period sequence is correct/more accurate?

There are two different aproaches to Firdaria periods sequence in nocturnal nativities.
The one lists Firdaria of Sun after the Mars period, and the other inserts Nodal periods between Mars and Sun periods.

Are there any statistical data or analytical methods etc. available that would determine which of the above sequences produces more reliable results?

I`d appreciate your personal/professional experience with Firdaria periods, too.