"Hrad to track down sometimes, but is often the cause."

I agree. Temprature changes, cell phones, radios, anything that produces an electro magnetic field, air conditioners, forced air furnaces, drafts. I once found the cute neighbor sun bathing on their deck had an effect on my Pact......

Digitals work, but they are affected easier by alot of things we ignore normally.

This is what I do
 

I throw the charges slightly under desired weight into a pill container then transfer that onto the scale pan, then top it off with the trickler I have modified to trickle up with power from an old electric can opener. I can bump it up to drop many or just a single kernel. It is fast and the cost was like $5.00 for the can opener at Goodwill. I made a box for the whole thing to stand on so it's at eye level. (Can someone resize this picture for me?)

I couldn't find one at Harbour freight that measured in grains, maybe I need to read through them again.

GoodOlBoy