I have the DPS II. You can save charge weights or enter them manually.
There are a few tricks to getting accuate charges. By accurate, I mean +/- 0.1 grains.
Make sure there is no powder logged between the scale and the frame. This will guarantee to throw things off.
Let it warm up for 24 hours before using if you haven't used it for a week or so.
Turn off your ac/heater to prevent drafts.
Turn off florscent lights in the area.
When it works well, it works very well. Every so often it will throw +0.2 grains at which I'll just throw it back in the hopper and hit the cal button.
When working up a load, I'll throw a light charge and trickle up on a mechanical scale. Once I've found the OCW, I let the DPS go to town and verify every 10th round or so since 1/10 of a grain isn't going to hurt the group.
The only real problem I have with the DPS II is throwing charges for my BMG. The tray is much to small but can be worked around.
Another annoying problem is the volume of the 'beep'. It's rather loud and annoying to me, at least. Wish there were a volume control on the thing or ability to turn it off without cutting wires.
The scale, IMO is capable of throwing 100% accurate charges all the time but the software prevents it. It SHOULD go to trickle mode when 1 grain shy instead of 0.2 grains shy. That tollerance is what's causing it to be almost always on, or almost always over by 1/10 a grain.
Works well with extruded powder, havent tried ball powders in it.
Cleaning isn't as bad as some say. If set up correctly, you open up the hopper, let it flow out, then use the brush to get the small spots. If you screw up and the powder gets 'everywhere' it can be a real pain to clean.
