truss rod type?

[eric B]

I was just curious what kind of truss rods Music Man uses in their bass necks...is it a vintage style, dual action, something else?

 

[Musicman Nut]

I was just curious what kind of truss rods Music Man uses in their bass necks...is it a vintage style, dual action, something else?

Not vintage, it's their own new design which many now have copied, but it's the best Truss rod on the market, because it's not so much the rod but how the cavity is in the neck, and this is where Ernie Ball Kills the competition.
It's amazing and it works wonderful.