What is a "most useful" list (not trying to hijack that thread) without a "least useful" list, which for me is the PACT Digital Powder Dispenser. Don't get me wrong, the PACT is a fine piece of equipment. It does what it is supposed to do, but in a less-than-timely manner. I can manually throw two beam scale charges to every one of the mostly expensive and slow "automated" dispenser charges, so it sits, brand new, used twice, and is ~15-years old.