Hi, i just changed pickups on my bass, its two MM style humbuckers. When i turn both my pickups on full the volume drops pretty drastically, tone is more thin then with one or another pickup soloed, and it seems that there is more high mids and treble. There wasnt this problem with old pickups, yes there was volume drop too, but hardly noticeable, it just slightly scooped some mids. New pickups have coils in paralel, old in series. Some advices about it?