Thanks bigfella. Was planning on doing Rombalds Stride and Spen 20 to make sure I get some longer distance runs in. Plus if I enter, I'm not really going to race it, as my main focus is 3P.
I know that if the weather comes in, it can be pretty bleak up there - originally from Sheffield and done a lot of hill walking around Kinder and Castleton, so I know the area quite well. I've never done the bit round from Mam Tor along Rushup Edge and across Brown Knoll though, so will have to recce that bit