We stayed up on the ridge. You can't really follow the crest. The book essentially tells you drop way down below the tree line and bushwack. Might as well go all the way back to the road. What we did was: summit Ellinor, drop down a steep chute into a basin, traverse to a large rock band, climb up towards the crest (the rock band could be downclimbed or rapped-but we just went up until we could walk off), traverse until join Washington route near the top of the final steep gully. We were in crampons the whole time, even on the summit. Not sure how long these snow conditions will last. Did this same route last year in June with some snow. Much more fun in winter like conditions.