I have a fast, staccato passage which features trumpet jabs and answering phrases, an octave higher, with triads consisting of a piccolo and two flutes. What is the best way to add a xylophone to the woodwind part, for added emphasis? Should I just double the top voice (piccolo) with single xylophone notes, in unison? Or should I double the whole chord (triads in the xylophone part, in unison with the woodwind voices)? Or something else?