King for the win When i got my bike it had a King and it was skipping like every week. Something just wernt right with it, so i finally got some balls and had a look at it my self, when i took it all apart ... well what i could i cleaned all the shit out becuase it didn't seem very fresh and then re lubed it all up. It was sound after that, then i Got me wheel built by Tarty so i thought he may aswell give it a propper service for me with the propper tools. I've now been running it with the tarty service for around 3 months and it's not had one skip and before that it didn't skip with my service either. These hubs are the Ultimate, there just the sex ... make such a nice noise and i trust mine with my life. Great Hubs if you have the money for them, i've also been on a bike with a Pro2, it felt nice didn't really notice the engagement or anything. It seem'd good to me but they havent been out long enough to right a real review up on them. Get a King if you have the money, Pro2 if your on a budget ... either way there both great Hubs .