So , I just purchased 2 Lansky Responders , they are avertised as having 440c steel on Amazon , eBay , and everywhere else in between , well the blade on 1 is stamped 440c and also the clamshell packaging states 440C , and the other one is stamped 9Cr18MoV on the blade and the clamshell package states 9Cr18MoV , any thought on what steel is better , I can't find anyone that lists it in the 9Cr18MoV version .