Never done that one so can't comment but Denstone is on the same day and a really good ride. You can find the ride details on http://www.ridingdiary.co.uk/funrides.asp
Yes I'm going. Never done it before but I know that you get access to places where you arent usually allowed to ride, you have a choice of 15 or 8 miles, optional jumps *should be anyway*. Starts at SDSC show ground, not sure if you get to jump their xc jumps?!
We did it last year and it was fantastic. Even had the police stopping traffic at the road crossings! Loads of cantering and a variety of jumps. One of my favourite rides and definitely doing it again on the 14th.