i'm looking to upgrade my current powder measure and was looking at this one from Hornady http://www.midwayusa.com/product/290524/hornady-lock-n-load-powder-measure. my primary use for this will be for handgun rounds (9mm, .40, .38/.357, and .44mag). From what i have been reading, this measure will ship with the standard metering insert and rotor, and that this may not be ideal for my needs? from what i can tell, i need to get some extra parts to get this measure to be consistent with relativly small charges. what i cant quite put my finger on is do i need to get the complete handgun rotor and metering assembly (http://www.midwayusa.com/product/16...-rotor-and-metering-assembly?cm_vc=S015290524) or could i just get the handgun metering assembly (http://www.midwayusa.com/product/63...re-handgun-metering-assembly?cm_vc=S015164839) and use that with the included rotor?