Clutchnet makes nice discs. Kennedy uses them with their clutches.
Clutch Kits | Clutch Discs | Pressure Plates | Flywheels by Clutchnet (626) 448-7432
Don't be turned off by the puck style discs in general. As long as it's spring-centered, it's not going to always be harsh or abrupt engagement. The harsh engagement is caused by solid center discs with no spring damping
The puck style discs are by nature lighter but still offer plenty of friction effect.