Tufnel,
Apologies for the delay in reply, almost a year to the day.
You will have to forgive me, my previous answers were not quite correct, I will try to explain a little why, give some clarity.
Harvesting numbers as you may well be aware, can send you down many rabbit holes, also remember nobody is giving you direct answers to this puzzle, you are very much on that journey by yourself and making mistakes in this scenario in my very honest opinion is the only way to get where you need to get to locate the answers.
I have made loads of errors, but in saying this, I was mostly in the right ball park, I was kicking the wrong balls around.
Many ask the question, why were the Erin numbers never shown again, the answer is simple

because they are not actually correct, they are based on only ONE element of consistency.
VDW spells his method out piece by piece remember, have most forgotten that he told us this or have they just completely ignored it.
From '
Narrow The Field To Gain a Winning Strip' to '
Flying Dutchman Believes In Consistency' , VDW focusses mostly on consistency.
I did explain in one post that VDW is spelling his method out in the same format as his formula, ie, Consistent Form + Ability, etc.
The interesting part is Letter 30 '
Flying Dutchman Believes In Consistency' is a summary of what VDW has conveyed and he draws a line under this as if to say, there is enough here for you to understand it so far and shortly moves onto the class part.
Once you manage to create the first numerical picture, then you have the second numerical picture to contend with.
These numbers are important, do not let anybody say otherwise.