I bought this today (not good for at least large nuggets)

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Tried to put down Potassium sulfate granular, the thing jammed many times, kind of got the hang of it but it might work for seed or smaller particles. I got it thinking my rotory spreader would drop too fast at the lowest setting. 1pd./1K as per soil test. Near the end I just used palm method.

What do u use for small amounts I tend to be a stickler with proper apps.