All standard stocks are a compromise.........so they fit no one perfectly. Seriously thinking about having a stock made by Gary Cane, but at a few qiud shy of £600 all i can do at the moment is think about it
. If the comb height is the only problem you've got with your stock and all else fits OK I'd go with having it modified. Paul Wilson as already mentioned or Frenchi (on BBS) . DIY with the risers provided by Elmor Fudd (really helpful chap) or UK Neil but wouldn't think about it unless you have the right tools and confidence.