rod bearings

I’ve used both. If you are beating on it the soft bearings will take more abuse, but they won’t take it for long. I was changing them out every 25-30 runs. With the hard bearings I could go 50-55 runs IF I didn’t make a mistake. A bit of dirt or cold oil and they would grab the crank. Any detonation would piss the hard bearing off.

If you keep oil to the rods any bearing will live.