Hi, I am new here (just throwin that out there) and I bought a basically mint condition pair of 4311's. They were from the original owner, and he never reconed them, he says they sound great, but I read JBL says you should recone them ever 12-15 years. My dad has a pair of 4310's that were reconed by my uncle, and the cones and the flexy stuff that attatches them to the outside look identical to the pictures of mine. So simply, i suppose i want to know, if leaving my speakers with the original cones, will i be missing out on the full JBL experiance haha?