all work really well, sensitivity and response is great. I bought these earrings for my wife, for her birthday. So far so good with this one ?? My only gripe is sizing. I?d get a smaller size than your usual. These Fit as expected, Im a Womens 9. only the allen screws and nuts and washers are stainless. I need more colors! It is very similar to this board that in addition to the RGB lighting will feature Logitechs proprietary Romer-G switches as opposed to the Cherry brown or red switch options available on the G610. Lovely apart from that rather crucial detail!