Unfortunately due to a snapped seatpost bolt on my mates bike within about 30mins riding we didn’t get to see much of gisburn.
We ended just after the bit where you have a short rockyish tight switchback descent and then a kind of rocky paved drop off, a few turns later you hit a fireroad.
Does that make sense?
So thats were we got to.
I found the first section far rockier, especially on the flats than I was expecting, I got over this ok with the 29er, but didn’t feel massively comfortable.
Cannock on the other hand (compared to this short section) has lots of flow!
Flow may be over-rated, but some of the flowing decents at cannock are great, they are mud/gravel as apposed to rocks so you can carry much more speed and be confident in SPDs.
As I say there is only one occasion at cannock that you have to put your foot down.
Forest of Dean is the same, never a need to put your foot down.
What I will do is choose my bike/pedals carefully. Bouncy bike and flats unless I go to somewhere like cannock when I know I can use SPDs happily.