I think numbering the event pieces is an excellent decision.
I have always been in favor of numbering them.
Except for the St Augustine I got away from collecting event pieces.
In my opinion the large production and no number on them took away from them being a desirable collectable.
Seemed too much like an open edition.
Now if the production could be less than the regular editions.
Make the production small enough where the event piece actually cannot be found on dealer’s shelves after the event is over.