Obviously some like light flywheels but I sure didn't. I used a lightweight steel (believe it was around 18-20 lbs) & aforementioned sof-lok iron disc and it did not work out. Flywheel was too light & initially decent clutch feel eventually deteriorated. A standard weight steel & organic disc greatly improved street drivability. When in doubt apply the KISS method.
when we changed over to soft loc clutch, mcloed said, you need the aluminum flywheel as it disipates heat from the clutch. a steel wheel will retain it, and clutch will be grabby and engage harshly. it's not a good combination.
