[Dinsdale]

I'll add a couple things with no verifiable info to suggest I'm correct however.. Almost all balancers are neutral or zero balanced so a change won't affect anything internal. Smaller/lighter should spin up faster but as mentioned, you'll never notice it. What is important is the name "Harmonic". A small lightweight balancer can't control internal harmonics like a heavy "factory" one does. Bearing or crank failure can be the result. Some engines and balancer brands are notorious for this.

Hopefully, a real expert chimes in here but i can guarantee you'll se nothing performance wise. Kinda similar to Roller Rockers that are magically going to add HP> JMO