Well I have to admit that it will be a cold day in "H" long before I spend 400 dollars on a scope. Most of my old scopes if they have marks on are barely visable. If I didn't take care of my scopes then I wouldn't have so many old scopes. Its fine if one wants to take this step but whats always worked for me will most likely continue to work so I don't bother with lapping unless I happen on to a set of rings that really needs it.