I’d be interested in any White Peak gravel/off-road rides too. I read on the forum somewhere The Peak District Pioneer has quite a bit of road riding in it so would prefer something more off-road.
I did the shorter Peak District Pioneer route with a mate a month or two back on cross / gravel bikes, erm, one of each. It does have a fair few very quiet back lanes and a very short stretch of the A6, but it felt reasonably balanced to me. It was a nice enough ride and took us down some stuff that neither of us knew despite being relatively local. I guess the issue with ‘gravel’ routes is simply finding enough suitable tracks that join up and aren’t too technical, that said, we’ve ridden a Cut Gate / Roych loop on cross bikes.