Blue 6500 C3CT vs. 6500 Blue Yonder

[Dave Peros]

Thanks in advance for any information regarding the difference between the blue Abu 6500C3CT and the older version 6500 Blue Yonder. I suspect it might have to do with the spindle and whether it is permanently attached to the spool or can be removed from the spool, as well as the placement of the spool bearings. Any insight is appreciated.
Dave

[Whit]

They are one and the same.  Mine has "Blue Yonder" and "6500C3CT" stamped on the left sideplate.