Yeah, Carbon V is whatever CS says it is. Insider info says the steel used has definitely changed over the years. Spark tests, other analysis, and insider info all agree that current Carbon V is 50100-B (Mike Turber is my only wayward datapoint, he has said that it's still 1095). Apparently Carbon V used to be 1095 but has changed (for the better) to 50100-B.
Joe
jat@cup.hp.com