9500 rpm? sorta - but there are even more advanced balancing levels, tiered by 1k increments up to 8k. but in consideration of practcality, we didn't go that far. that's, paint the interior of the engine level, blueprint building. there's even an add weight option where-by standardized, cylindrical weights are added to the crank
and prior to this, i thought ya just layed a rod on a good scale and weighed it. nope. if you're not aware; they're weighed on a scale whereby the crank end is resting on the scale, and the pin end is horzontally supported by a 'mini' trapeze. then the weight of the rod is put into the data log, where-by the individual crank end and pin end weights are calculated, and introduced into the balancing 'equation'
pretty far out dude