the deal with the new korlia and seio wavemakers is that they never actually shut the ph off, they just ramp them down to 20%-30% power so the impeller never gets a chance to end up reverse rotating.
although other units like the redsea pro will soft start your ph, they shut them fully off when they're not on cycle which will eventually kill the motor. i have heard that using a wavemaker and a modded maxi-jet will be ok.