What Bearings Do You Recommend?

We prefer Twincam ILQ-9 Pro and Classic plus bearings.  These can be found under various brand names including Rollerblade and K2.  The Rollerblade Twincam ILQ-9 Pro bearing set typically comes with spacers, which is a nice bonus.  We like the six-ball design, fast roll, contamination resistance, and serviceability due to the removeable shields.