I'm trying my hand at building a bass from scratch(or at least everything but the neck kind of scratch). I've done my designing and chose the different woods and hardware, but I've just thought of something today that I may have planned incorrectly. I'm trying to build a 5-string bolt on neck style bass with one passive EMG pickup and two active EMG pickups. Each pickup would have an independent volume before converging into the EMG BQC control and finally into a master volume pot before the jack. Would this be an issue? I'm aware that there will be a difference in volume between the active and passive pickups but would there be any issues bring the signals of the three pickups together in this fashion?