Well, the Break weight block is still being made, so lets leave that one out.
1. Track Robocore. Machine was a mean ball.
2. Ebonite Tidal Wave Wipeout core. A smooth rolling core made assymetrical. Loved it.
3. Track Threat. If you don't know why, you never threw one.
4. Columbia Aftershock. Flare for daaaaaays!
5. AMF Velocity core. Velocity and Max Velocity were awesome rolling pieces!