Into,I have a few questions.  How many days do you ski a year?  Are you experiencing any health problems or phyisical changes other than the bruising (lost any weight)?  Have you started skiing more difficult terrain recently?  Did you change your skis this year?  In short, did anything change other than the boots?Shin bang is usually caused by your boots being too lose.  That could be because your liners are packed out, needing replacement or you have base lev