So far I have had four pairs of originals in more or less used condition for comparison, have kept two intact pairs. I would consider myself picky, and it's quite possible more JBL speakers in need of undamaged lenses will come by in future.
Anyway, these Kenrick lenses are as good as it gets now and look brandnew of course. I personally won't bother about looking for „mint” originals anymore, I'd just order another pair from him and be done. Handling and shipping to Europe was professional as well.