I suppose I'm one of these amateur meddlers, although I have been grateful for Peter's advice on innumerable occasions over the years & like to think that he generally only has to illustrate the solution to a problem to me once. Luck has also been with me in having forty total wreck No32 scopes that have come back from India as deck cargo on a U boat. All lenses are unserviceable or completely missing, internals are broken or missing & even many of the scope tube ocular ends will need grafting. On top of that they've been daubed with paint over dirt & rust. When they're so bad you've really got to try hard to make them any worse......