I'd happily take people that route, just beware coming off the summit of Snowdon follow the path down to a sign for the Watkin path and follow the Watkin path for a bit. I've seen people trying to follow the path on a map and getting in to some difficulty
Ah ok. I see on the map, the Watkin path only splits away from the other path at a place called Bwlch Ciliau firther down..so thanks for that