What would be the out of box savings on, say, a 2hp intelliflo pump vs. a single speed 2hp, going head to head with same GPM and pressure? I saw a couple of fairly welll done youtube pump side by side comparisons of the intelliflo and the single speed, hooked up to electrical test meters and pressure gauges. In that video, it looked like that with both the single speed and the intelliflo outputting the same in the way of gpm/pressure, the intelliflo was operating with about 15-20% better efficiency (ie, an out of the box savings). But then I see posts by some claiming the intelliflo will be using 40% less in electrical consumption, again, with both outputting the same in the way of GPM and pressure. (And yes, I know far greater savings is achieved with ratcheting down the pump speed and increasing the operational time). I am sort of dubious about that 40% figure.