Of the 80+ pilots who are "signed up" at this point, I'd say easily 50-60 of them have had time in a grid (4x4 or greater).
At least 40 of them have likely been in a grid of 50 before (last year at WSIKF at least).
64 should be easy with the 'experienced' fliers!
I suspect that the shear weight of experience, enthusiasm and ability to help less experienced fliers make this a 'no-brainer'.
I have been thinking further about my autograph project and may have to ask for everyone to help to make it happen on a practical level. I was hoping to get participants to sign their names and write a few lines about the event and what it meant to them. Obviously if thought could be given to this ahead of the event and texts could be sent to me by e-mail the whole project could be wrapped up much sooner.
Thanks for your help