Anybody ever tried this little gizmo?

Everything it his turns into wet again unless a proper finish is applied to surfaces. That's why annular boosters are better. When a droplet from an annual booster hits something it is already a much smaller droplet which it's easier to pull back into the air. Those little brass deals take a stream and turn it into a finer mist than the regular pump shot.
I am not a proponent of this product but I am a proponent of making fuel stay in suspension -atomized as best a carburetor can.
When we dyno tested my engine Tim kept saying I can't believe those bsfc numbers my engine was producing...but everything I did on my engine from the carbs down proves it works.
I even put the roughest glass peen finish on my intake valves before I did my valve job. I tested the valves after by simply running water over them, the water broke it couldn't stick.
So this is all I am a proponent of if that makes sense.
We're in 100% agreement about better atomization. That's one reason why EFI has the benefits it does. Until I see definitive proof that has been proven on the drag strip and duplicated, I'm reserving judgment. lol Kitty says I should be from Missouri, because I need to be shown proof of everything. lol