I am seeing what looks like 2 kinds of static grass applicators with end shakers (not sieve cups open on the top).
They look alike, except that one is powered like a flashlight with 2 1.5 v batteries, and the other has a wall wart power supply that can supposedly be replaced with a 9v battery.
My first question is which performs better?
My second question is whether the corded power supply makes for better performance than the 9 v battery in the same unit. It seems to me that having a cord on the end of one of these things is a negative feature unless it is needed for better performance.
Education, please.
