If you believe in the KISS system, a nice little RCBS or similar quality BB scale is the ticket. If you're after uber-accuracy, you'll trickle all charges. If good enough is good enough, its not difficult to get within 0.1g tossing with a decent charger and just spot checking with your scale. Chargemasters are popular and 100's love em but IMHO, + - 0.1 isn't worth 400 bux.