Perhaps you should just spring for the added sound. I can definitely tell you it adds serious effect hearing 2 blades come on in staggered succession, as well as "whooshing" when twirling.
Yeah, I'm just adding sound to the second saber and asking them to darken the DVA a bit on both. Added FoC because awesome.
Ironically, I originally envisioned this as a low-cost staff. Not so much now, ha, but at least it will be suh-weet.
I have other sabers with sound, to be fair. FIgured one with sound would be adequate on a staff since all the sound originates on the hilt anyway. But since it's impossible to match colors on stunt/sound hybrids, sound it is!