Extreme data variation with MaxBotix Ultrasonic Rangefinder

If I buy a set of the MB1242 sensors can I use the same wiring scheme that I have now? I have good insulated wire so noise isn't an issue and I am powering the sensors and arduino from a power source separate from the drone. A good lipo battery should be providing sufficient power for everything, 7.4V, 800maH.

As I have it now I can make the project work but if I decide to spend a whole mess of money getting more sensors I want to be sure I won't have to rebuild everything.

Thanks,
Postholes