Problem is, without an appropriate test machine, a standard DVMM can't measure the in-rush current of the fan as it kicks on. Although with it ramping up like I see in the video, it won't be nearly as high as just slamming it.

Any more information about differential voltage to the trigger having an effect on fan speed. I'd place my order tonight if that were the case Planned on programming a controller myself to handle multiple output voltages based on temp.