The issue though is a billion different things can be the number one cause of death depending on how you measure it . If I wanted I could contribute many of Mao ' s deaths to planned economy , starvation , over population , all technically true the same way it is being attributed to ' domicide . ' Is it falling that kills more people , or hitting the ground , or the transfer of energy into their internal organs , etc ? <| sep |> After watching some COD scrims last night . Does it annoy anyone else when the team calls out other players for being more practised than them ? <| sep |> We tested a bunch of bearings on our prototypes steel , hybrid and ceramic some with guards , some without , some with just the balls and nothing else . In terms of spin time , ceramic bearings with nothing but the balls in them do best . In terms of durability , I think corrosion is the main issue . You have to oil and clean steel bearings regularly whereas ceramics don ' t require lubricant and therefore don ' t get as dirty .