Scott, correct me if I am wrong, but the upgrade does not include any changes to the drivers - and that the drivers in the 3A's are not the same as those found in the 3A's Signatures (if bought as 3A Signatures) - such that if one upgrades, say, an older pair of 3A's, what one gets, in reality, is a 3A with 3A Signature tweets and X-overs NOT a true 3A Signature.
