Dave,
Personally, I would say Highland Fling once a year and keep it as a top event . May is a great month to have it but being selfish , just a week or two later would be perfect.
I'm starting to think about a possible late summer into autumn weekend run and considering the Borders into Dumfries and Galloway with an overnight stop as an alternative venue. I'm on holiday in a week or so (not going away) so will spend a bit of time on a recce. Happy to work with you/others on this
Hopefully if we did organise something there would be a decent bit of interest
Cheers
Gus
PS Dunfermline is in Irish Al's patch