A good path ascends from Caolasnacan (parking for a few cars) at first following the north side of the river and then heading directly for the col between Garb Bheinn and Meal Dearg's north spur. From the col turn right (S) following the ruined fence to the summit (good views of the "notched ridge" above-right) where you will meet the line of pilgrims attempting the main ridge. Carefully descend straight ahead (S) for a few metres for excellent views of Bidean nam Bian and the Aonach Eagach from a pleasant grassy knoll

Sgoor nam Fiannaiddh (approx. 950m in 3.0K, 3100ft in 2 miles)
Avoid the steep path from the Clachaig inn and instead walk along the old road for just under 2 miles and take the "Pap" path (turn right off the made up track well before it zigzags), then branch off right (E) again near the start of the prominent ravine of the Allt a'Mhuilinn. An obvious path zigzags to the summit joining the Clachaig path near a prominent cairn. 
Sgoor na Ciche (Pap) may be included by going to its summit by the usual route and then retracing steps to the col and then following discontinuous faint tracks (SE) over rough ground to Sgoor nam Fiannaiddh with its amusing wind shelter containing a trig point.
The ridge then narrows and continues on to the top of Stob Coire Leith.

In descent take care not to pick up the direct descent to Glencoe and to not stray south off the path into stone shoots.If in doubt keep right (NW).