I have the Lee Auto-Disk powder measure installed on a Lee Turret Press and am having problems with accurate loads. I am attempting to load 9mm rounds. I'm using 124gr FMJ bullets with WSF powder. The load data specifies the starting load and 4.8gr. I took 16 samples to make sure the dispenser was working but it doesn't seem to be. The average powder weight was 4.22 grains with a high of 4.5 gr. I noticed that the was powder under the charge disk which could be the difference the I'm missing. Has any one had experience with the Lee Auto-Disk powder measure?