Thanks for the link, Ed. Great idea. I've forwarded the current April chart to the Guides. It will give them something to do while queuing at the scopes. I've also asked that the Guides cover their torches with red cellophane too.
Thanks Ed, Wavy & Adrian for putting your hand up to help,

. I'll PM you details shortly.
Dimithri & John, hopefully you'll be able to join us. Let me know as soon as you can as the organizers and rangers need our names.
Is there anyone else who would be able to help out with this, please? The more that come along, the more the attendees will be able to see, and the shorter the queue behind the scopes become.
Alex.