After my dog-leg south and return to base, I decided the sun was close enough to warrant a glide over the A470 - you can just see it creeping into the right hand side of the bowl I'm heading for, top right of the picture. I used the ridge between my glove (!) and the road to maximise the glide, as the first part saw 5-8 down for some way, the only significant sink of the whole flight.