How long have all of you run your shells before the finally give up the ghost? I'm on year 13 with my Suzukas, after 3-4 liners and 2-3 heels as those pieces wear out, but I spent a lot of time/money getting the shell fit right, which I am happy with now. I've been through two sets of Zipfit liners so far lately, which work well but last perhaps 3-4 years tops at 25-40 days a season.
I'm thinking of investing in foam-injected Conformables or Surefoot liners, but am slightly worried about overall shell life. I don't want to drop half a grand plus on custom liners then have my boots crack on me. They physically look a little beat, but no noticeable cracks or stress marks that I can tell.