Is the Gibson NR pickup actually any different from the Epi pro bucker?
I wonder if they sound pretty much the same.
They are different. Scott replaced the NR pickups with Probuckers. But he'll have to describe the differences. I've never heard either in person, though I have a set of Probuckers sitting here waiting to get put in the 2018 Thunderbird that currently has Thunderbucker 66.
Scott, if you can describe the differences between the NR and Probuckers, I'd love to also hear where you think the Thunderbucker 66 sit in with those.