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Both Peter Hermon and John Gillham call the route "The Stone Shoot."
Hermon says it is "undeniably steep" but "it is agreeably firm underfoot."
He continues, "A strong walker should have no problem in taming it in little more than half an hour. It is no place for families or the 'one-weekend-a-year rambler'."
Gillham writes " The final stages are very steep indeed" and like Hermon he refers to "strong walkers." He also adds a note: "this is not recommended as a descent."
So, if your confidence and experience are high, give it a try. If not, leave it well alone.
References:
Gillham, J. A pictorial guide to the mountains of Snowdonia. 4. The southern peaks. 2011, Lincoln.
Hermon, P. Hillwalking in Wales. Vol. 1: Arans - Dovey Hills. Cicerone 1991.