Disagree on the seat drop - always nice to have a down long enough to drop my seat - although the 'cliff' at the end of the black-run seem to have been 'tamed' a bit.
Same for everybody first time at Afan, but once you get fit (and warmed up) its a joy and mostly in the middle of the block - we did it twice last month (Penhydd, then Whites and then mini-Skyline) over a day.
Although it took a good session in the Drop-Off in between to do it.