Yeah, we have been trying to think of somewhere else too, for a few reasons. We even considered trying to build a trials park just for Tarty Days this year, but the venue was double booked (and I wasn't 100% keen on the idea!).
There's Bob MacGregor, but without having been there myself I don't know how well it would lend itself to an event like Tarty Days. Something different - yes, it could be awesome - but when there needs to be a 'group' atmosphere for a few of the mini-events I think it could be too spread out.
Would people be up for something like this at a natural spot? Tech 04 was awesome for those who remember that far back, and Bracken Rocks was a good venue.