Originally Posted by Colorado4Wheel
I had horrible squib issues with the adjustable bar. Others have as well with light charges.
I have one too but not for anything light. Actually, I use it for small rifle loads by setting it at half the charge, then activating it twice. For anything that must be very accurate, I just use a dipper and weigh.
My preference is the disc because they can't change - once I have a verified load, no more checking is necessary.