The Sage blank is labeled Graphite "III B" to designate it was purchased as a blank. Sage warrantee will cover replacement of the blank only. The Graphite III with serial number is a completed factory rod. The rod material and quality is identical.

The newer rods changed to Graphite IIIe material and that is most likely a factory finished rod you have. My Sage 990-4 XP blank has Graphite "IIIe B" labeled.

Regards,
FK