You don't know too much about violins, do you?
Well, perhaps not as much as you. If the secrets of the Strad have been known for a long time, perhaps you should share them with all the people who are still painstakingly researching it. They do not know the chemical treatments or varnish he used (though they are getting close), and a violin has well over 50 working parts. They say that to study the variations of all these possible interactions would take another 200 years. True, the Amati and Guernerius do command the same respect as a Strad and are equally old.
...Randomly, there are perfect physical replicas of Strads and Guarneri... Really only the signature wood treatments and varnish composition are still in question (somewhat in question)...