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On the Crossfire original and the XL, with the cantilevered arm, you may have to check and adjust the X axis alignment with the Y. A 24" framing square should be good enough to find and correct this error.
Drop the torch down to just touch a straight edge straddling the table along the Y axis, near 0,0.
Move only Y direction to the max Y and rotate the straightedge so it just touches. Clamp it down and double check to see if it moved.
Put your framing square along the Y axis with the gantry positioned midway on Y.
Now move X direction, checking alignment with the square. Ligthly loosen the cantilever arm bolts and adjust the arm position to cancel out misalignment.
You might be able to do the same thing with the Y Bearing block adjustments, but if those are already good, I wouldn’t mess with them. The other adjustment is easier IMO.