I have a set of EMG's (81 and 89) in my Charvel and I've bought those pickups somewhere back in the mid 1990's, IIRC. Do they age (in a bad way)? Do newer one's sound different (better)?
+1 They should be just fine.
I've sometimes read how pickup gurus work hard to mimic very old vintage pickups they say have experienced a "tonal aging".
What magnets are most prone to sound change over time?