Yes, I drip at first. I blow out the atty, put a carto condom over the threaded end, stand it up and fill it with plain PG and let it soak for a few minutes. Then I remove the condom, blow out the PG and prime it with the test juice.
If the atty had mint or cinnamon in it, I'll also rinse it with PGA before soaking it with PG. That seems to help with strong, persistent flavors.
Thanks MaxUT...very helpful!!!!