I still like the roman numeral NCCS grading as it clearly defines for me what can be accomplished in a day and encapsulates time much more succinctly than does the "new" French system. The D+/TD- zone seems problematic as it could include a six pitch 10b pure rock route on Grainger or a slightly mixed, more alpine route on Joffre or Slesse. Retreat for me is more easily had on "hard rock" features and thus the idea of "commitment" is still ellusive.
Also interesting to note Squamish guides haven't included NCSS grades since Smaill's guide, even thought Sean Easton applied a VI grade in the CAJ for Skullfuck and others continue to refer to Angels Crest as IV, etc., etc. Thus we are to take it that even though approach should not be taken into account and roadside and backcountry routes of similar scope should recieve the same rating, the "alpine" nature seems to be a prerequisite at least in the PNW (still used in Yosem obviously).
An imperfect but nevertheless implicitly understood system