The issue would be amps. One spirit power supply is just enough to run one prop. 2 props one one spirit power supply would require more amps than the one power supply can output. This will lead to power supply failure. Next would be if you got one main power supply that had enough amps to run ( in this case eight props based on that photo ) would that adapter/splitter handle the amps going through it. Myself, I wouldn't risk it. Now if you were running all the props from a prop controller, and could guarantee that only one prop would be on at any one time, that's a different story.