In reply to Derek Furze (but more in reply to the OP really):
> Parking is the only problem.
> It isn't busy, but there are often others at the crag.
Expanding on this a bit, if anyone else has driven to the crag at all the nearest parking (SK266934) will be full. Two cars tops. About 1km further to the NW along the Penistone Road (heading away from High Bradfield), there's more parking at a gate to a logging track into White Lee Moor plantation, and again a bit further along where the public footpath crosses the road. (Best way to walk in from there.)
That footpath brings you back to a kissing gate and a bench near the NW end of the top of the crag, from there you can go down the steep slope to walk in along the bottom of the crag or carry on to a big grassy gully about 500m further on. (Close to the Great Wall area.)
Alternatively if you're willing to put the effort into toiling up the hill there's ample parking on Smallfield Lane along the Eastern side of Agden Reservoir. At the gate by the bridge that carries the road over Rocher End Brook there's a big stone stile (more a small flight of steps up and down again) and a choice of footpaths - less muddy to the left straight up to the ruins of the demolished farmhouse, or the much more attractive path up the side of Rocher End Brook itself. From half way up the hill (between the tops of those two paths) you can strike out straight up the hillside (a well trodden path but not on the OS map) towards the old cruck barn labelled "Bowsen" on the map. (SK 264930)
With its modern tin roof, the barn looks like nothing from the outside but if you're passing have a peep inside at the wooden structure inside, it's really quite impressive.
Oh, and It is grit, but more like Chatsworth than Stanage with some really soft yellowy bits that have weathered into amazing patterns. (Some of the routes have odd bands of rock too soft to place any gear in.)
If you're driving 100 miles to tick off a load of classics stick to Stanage. But if you're happy with a handful of good routes, beautiful gnarly old woodland below the crag and stunning views from the top, and relative P&Q it'd be worth a visit even without the nostalgia.
For after, the Old Horns pub close by in High Bradfield has ample parking and a large garden with a variation of the same excellent view. Also food, friendly service and a very decent pint of Farmer's Blonde. (One of the local brews from the Bradfield Brewery just over the road.)