Only two are veterans, two others, we could say, with previous knowledge, the rest are novices in braiding and throwing.
As for the organization of the event, I belong to a paleo forum in Spanish,
https://www.paleoforo.com/ from which the ideas for the events and the majority of participants emerge; we have the invaluable collaboration of a hostel that welcomes us for these occasions.
Slinging.org seems to me to be an ideal place for events of this type to be organized.