I would not install a smoke pump on the same battery as my receiver. That's just inviting trouble. To stay in step with Saito's suggested minimum ign. battery, maybe replace that 600 with a battery big enough to run the smoke pump as well as the ignition? Worst case then, assuming the Saito ignition is set up similar to the Rcexl, is that the pump will put the Saito ignition into limp mode if the voltage gets too low.