Hi Racer.... i think you're possibly confusing the larger props physical additional rotating resistance with more ohm's law electrical motor resistance because of the bigger prop... The motors electrical operating resistance actually goes to a lower numerical ohm resistance number as the larger prop causes the motors operating RPM to run slower than with a smaller prop.... When you plug in the lowered R value into the ohm's law formula, the Amps resultant should get larger, consistant with your "more motor loading intuitional" thoughts... You are familar with the load reduced RPM causing less motor counter EMF against the battery's EMF causing more foward motor amps concept, right ???? ..... kw