In reply to alan moore:
Ah yes, always an entertainment for the first few trips!
If you want to get back to the start of Rib and Slab, then the Old West is probably the more direct route. As you say, down off the nose of High Man to Low Man, and then it traverses back towards the mountain. Fine in the dry, rather precarious if damp.
Slab and Notch takes you off the east side of the rock, so having got down, you need to go up the scree to get you above Pisgah, and the drop down Western Gully. Don't get drawn into Jordan Gap (between High Man & Pisgah) as the gully down from there is kind of vertical. Slab and Notch is probably considerably easier than Old West if it's at all slimy.
Or, as suggested - you can ab into Jordan Gap. You then need to down climb/ab another short gully on the east, to close to the start of Slab and Notch. Then up the scree, behind Pisgah, and down Western Gully as above.
Old West would be best done still in rock boots, but if you're heading down the other side of the rock, I'd take trainers for the trek up the scree and down the gully.
I hope I've remembered all of that right and it makes sense....!