Not entirely true. But having better tools makes it easier and quicker. I have a buddy in Tampa that is an excellent machinist, former tool and die guy and builds kick butt engines. He has all the old school machines, but he has to measure and take his time to get it right. He likes to hold things to .0001" tolerances. He is not cheap though. I spent $1k on brand new Manley Hemi rods getting them fixed since they galled the rod bolts from the factory. We put in new rod bolts and tubular dowels, he ground the caps down and resized the big ends. So I have almost $2500 in the Manley rods, but they are mint. Could have bought Carrillos for that price.