My setup is as follows: I have a 12v 350w power supply, it powers my string of 256 pixels. I have power at the beginning fed directly by the controller. I then have power injection from the SAME power supply at the beginning of each 100 ct string. So, wires coming off of power supply powering controller and 2 injection points. From my understanding, I don't benefit in this situation by fusing my V+ lines....is this correct?