Hello everyone. I have a question about Flywheels for a Super Splitter, or Grippo, or any inertia Flywheel type of Log Splitter? I found two different size Flywheels. One set is 18" in diameter and about 70 lbs. The other set is 28" in diameter and about 70 lbs. Which would be better to use on the Inertia Splitter? About what kind of rpm would they turn the pinion gear? I would appreciate any help. Thanks