They do not have dual action truss rods, as far as I know. The adjustment nut is on the end of the truss rod, and you can unscrew it right off if you want. That's definitely not possible on a dual action.If I‘m not mistaken all current EBMM Models feature Dual Action Trussrods.
I never had any issues with my JPs when I changed String Gauges. But I didn‘t go lighter than 09s, mostly went for heavier Strings and lower Tunings
It's a single action truss rod.If I‘m not mistaken all current EBMM Models feature Dual Action Trussrods.
I never had any issues with my JPs when I changed String Gauges. But I didn‘t go lighter than 09s, mostly went for heavier Strings and lower Tunings