The only time i've seen a problem with this was when we were having power/balancing issues over at Cherry Valley. However, a large contributor to the problem was that when someone had installed the system initially, they had given each booster it's own power supply, without matching voltage, load capability, or AC waveform polarity. They had also set up the power districts with adjoining districts fed from opposing ends. Rearranging them to be fed from *both* ends, and getting a power supply large enough supply to handle everything together, solved *so* many issues.