@icedquinn, I’m not sure what skipping should look like, but I’ve just tested with Xonotic and don’t notice anything unusual even when spinning really hard.
Forgot to mention, but the ProtoArc uses tiny (plastic? ceramic?) instead of ball bearings and I’m not sure how durable/replaceable they are. The Ploopy Classic is indeed an amazing device for a multitude of reasons but its price (including shipping to the other side of the globe) with the risk having to deal with customs (under a certain price there’s no fee and I don’t have to communicate with them) in a language I don’t understand is just not worth it for me.
Cc: @tyil