Those tests were with a BOOSTER, not a receiver pack. A booster is boosting the voltage and to do that, it has to draw more current so I am not surprised to see the higher amp draws. With the switch off, it is not supplying the esc but turn the switch on and not only does it have to supply the esc with power but it has to boost the voltage, effectively doubling the current it draws.

I run with the switch on with a receiver pack and have never seen more than 80mah in one 8 minute run.