I have been running these Gbomb ceramic bearings with built-in spacers and they are super nice for the price…a little step up on Zealous…These Gbombs are made for world record breaking long distance push/pumping, so they are made for lateral movement and are quiet and lightweight…I have been impressed with the performance…
http://www.shop.gbomblongboards.com/GBomb-Ceramic-Ultralight-Bearings-with-Spacers-Ceramics.htm