I have the same problem.  "getting fitted" is hardly a solution at 90% of stores because no one that works at most shoe stores even understands the term "instep."  I've found that loafers are damn near impossible to find that fit.  I've also found that rubber sole shoes hurt my feet worse than leather soles.  Cole Haan's used to fit me and not hurt my feet, now they have rubber soles and it hurts my feet.  I am tempted to just buy a pair of Cole Haan's and have them...