Whenever I play a tech class and have to choose a weapon, I always go for look and sound of the weapon.
Unfortunately the cooler looking blaster weapons don't really have a good sound.
It would be cool if there would be an additional space to mod weapons. Next to the color crystal and tuning, there should be an soundslot, to make your weapon sound like you want.
This would make obviously more sense for blaster weapons (sniper rifle, blaster rifle and blasters), but could be also possible for the light saber.