I had a Lyman DPS several years ago, it was an absolute PITA to use....erratic drops, inaccurate, and just overall worthless. Sent it back to Lyman, and avoided auto dispensers for a while. Picked up a PACT a few years ago, and it was completely opposite of the Lyman. I haven't used it in a while, but I have a lot more confidence with the PACT.
