Yes, the initial turn on the Greenleaf Trail leaves due west, however, there are several turns from that point to where it enters the treeline and the cairns are not that large and in poor visibility those turns can be missed My personal choice if the weather may be iffy is to evaluate if I even want to be on the ridge from Greenleaf instead of the end of the ridge. High water would be an issue however, that crossing in full winter is crossed on ice and normal winter flow isn't bad. FW isn't technical or as steep, IMO as going North on the AT down Garfield, South Twin obviously Flume Slide. (Which should only be descended by the highly experienced who, because they are highly experienced, likely wouldn't.)