Well i've had a pack of daddario classical strings for around 5 years unopened and i'm just wondering if old strings are worse than new strings, both unopened.
There shouldn't be a problem. Most strings now come in those vacuum sealed bags to preserve the 'freshness'.
well the one i got doesnt have the vacuum sealed bags, its those paper bags. but they havent been opened so i duno if age has affected the strings or not.
Who cares, just put em on and do the test.