Ultracycling

Is that what the Baa Baa guys realised a bit too late?

Are you sure Scotland doesn't have some kind different rules?

It might well have been.
I think it's UK laws so would be the same.
https://www.google.com/search?q=does+the+road+traffic+act+apply+in+scotland&ie=utf-8&oe=utf-8&client=firefox-b-ab

There's a guy who posts on YACF who is a sometime commissaire / organiser for races in Scotland and it sounds similar from what he says. In some ways it's actually worse as there is no CTT there so even time trials come under BC / UCI rules.

But they won't be wanting to do any of that as not workable. Let's see if they can do it on an informal basis.

Thinking about it, where they might come unstuck is when they try to get organisers liability insurance.