I use HARRIS BLOCKADE #45535. It sticks to pretty much anything. got tired of the flux falling off the stick or drying up in the can. I have all kinds of rod, but I like the blockade the best. I finally got those Elderberries in the ground.
[Linked Image from live.staticflickr.com]

I know a lot about a lot of things BUT I still have a lot to learn.
Life is what you make of it. So, why not make a working machine to make it easier.