Any new powder dispenser is a pain with static until they get a coating of graphic inside the measure. That just comes from using them.
I never clean mine, the blacker the better as far as I'm concerned. I have a major static problem in my loading room in the winter when the weather is cold and dry.
You want to see something really weird just fill your measure half full and wrap your middle finger and thumb around the base of your hopper and quickly run them to the top.
When I do that, some of the powder inside the measure jumps up about and inch or more.
It will get better but until it does I sprayed mine with Static Guard, Spray it over the top and let it drift down into the hopper. It's a really fine mist that comes out of it and it will do wonders for the consistency of the drops.
Your wife may have some, just don't let her catch you using hers. It's best to just go buy your own.