Hi i'm about to make a warmoth project,and i wnat to put alembic jazz activator in it,someone can help me with the spec of this activator?the activator need to be grounded?i need to ground another part of the bass?what about the dimension of the jack?for you is better the axy or mxy due too that i'm starting a new one and don't make a replacement.what about the dimanesion of the axy and mxy and for least i'm a lefty this pickup work as the same if i turned it into my position?thank you at all bye