Advice and info please!

I'm wanting to do this race this year, but unfortunately can't get a weekend away in time to recce the route. I know bits of it, but not enough to link it together, so how is route finding on this race?

Also, how tough a race is it? My longest fell race to date is Borrowdale. I know there's a bit of extra distance and ascent, but how does it compare?

Any other tips gratefully received!

thanks
Stumps...