No worries. These guitars are STRONG. Here is what I posted recently in Kupuna's thread about his twelve string:
My X20-12 currently has D'Addario EJ-38's (47-10) on it right now. I took off the factory strings (EJ-37, 54-12) immediately to put a fresh set on X20-12 and my Taylor twelve string, for direct comparison. Those are done now, and will be replaced by Elixir's - I have a set of Polyweb strings sitting here. I'm not a fan of changing twelve strings.....
That original EJ-37 set was tuned E-e from the factory, but is intended (I think) to be tuned down to C# or D. Those strings were HEAVY at standard pitch, and a handful to play for even cowboy chords. The X20 did not flinch with 335 pounds of tension originally, down to 165 pounds when removing the octave strings (leaving essentially a light gauge six string 54-12 set at 165 pounds) or going back to the EJ-38 set (250 pounds). There was no need to change the truss rod for any configuration.
https://www.acousticguitarforum.com/...d.php?t=533709