Don't have any experience of these Julie - I'm sure Scarlet won't mind either way
The lack of response is probably because this is a holiday weekend (4days) so a lot of people will have gone away for the weekend.
There are quite a few COLers who have synthetic turf and you might want to change the title (to Synthetic turf for agility or Astro turf) as Tartan isn't a brand we're familiar with.
Here's a link to a recent topic.
http://www.cockersonline.co.uk/discuss/index.php?topic=81890.0