Well, I bit the bullet and have entered and I got my information pack back today.
Pete, you have the route wrong. You don't turn left up the A6 and left again at the Bull's Head. You continue under the A6 to the Middlewood railway station and then turn left, up to the canal and then back to the Ringers. I ran "your" route the other day just to check what I should put down for my estimated time in and I've ended up in group A! I reckon it'll take me an extra 5-8 mins