Bertrand
April 1st lasts quite some time this year !On the other hand, if tarot was invented in France by Mary Magdalene in the 1st century CE, perhaps a method of reading which almost makes sense does too much violence to its absurd origins.
Regarding the interpretation of the numeral cards, my personal view is that - among other things - they offer their inner numerology.
I detailled this in a text in my usual bad english :
http://www.bertrandtarot.com/textes/cartes-numerales-une-numerologie-intrinseque/?setlang=en
These observations of course do not exclude any other methods but on the contrary can enhance any other way of reading the numerals.
Bertrand