That's exactly what I have (fidanza with stock). The only downside I have felt is a slight jerkyness at low speed cruising (like 20-35 mph range) no matter what gear I'm in. You can definitely feel the clutch engaging and disengaging at those speeds. It's not a head-jerk strength, just a little pull, not enough to label it 'undesirable'. Most of the time I'm accelerating and decelerating in that range anyway, only times I cruise at that is in school zones so it's pretty much a non-issue to me. As far as rod bearings, no clue.I have the same questions as OP. My clutch is getting weak (SMT), so I'm trying to plan the parts I want. I have stock 1zz with no plans for engine mods. I would enjoy quicker shifts but I don't want to give up any durability or lose any smooth clutch engagement. Is anyone running Findanza light-weight flywheel on an SMT? If so, does stock pressure plate work best with light flywheel? Is the light flywheel hard on rod bearings?