I am wondering if the merkur 23C and merkur #180 are the same razor? also, is the merkur #180 same as the merkur classic long hand? I have the merkur #178 which, i believe is the HD - is it correct? I find that the handle is too short and stubby, and was thinking about the 23C or #180 but I am not sure if that is the same razor. if not, what is the difference? Thank you in advance for your expert advice.