I know there's a lot of love hate for RCBS charge masters for sure... I finally got the new charge master link because blue dot sucks on metering on every powder dispenser I own ( 3 )... The first one like every other RCBS product I ever bought was sent back because of some problems.... Although I never got it to throw powder wrong... The second one will calibrate correct and out of fifty thrown charges it was dead on the other night using it and a second and even third digital scale to check it... For me it's working very well... Don't really care about alot of the features or that it's a little slower than some just that it throws correctly... By the time I am ready it's ready within seconds.... Never thought I would own one but it falls into the I can't believe I didn't buy one sooner things...