They are smooth switches with a tiny bit of spring ping. There is no perceptible difference between the two spring weights. For the same price, I would buy Gateron Milky Yellow Pros, but they are slightly heavier.
The switch is awesome. They are kinda alpaca? I mean not really alpaca but they are up there. CHEAP AS CHIPS so go get it people. Service is awesome too. You wont be disappointed.
They sound so good