All Epi TB variants I have ever played have had wider nuts than Gibbie TBirds. I always attributed this to Epi opting for more stability against neck break. Given that their customers often have a budget that only allows purchase of a good case if money from the bass acquisition is left over, I actually thought this a sensible policy. The classic TBird nut is visually elegant and nice to play, but it's of course also asking for a disaster to happen.