CNC is completely mis-understood by the gun buying public. Just because it was spit out of a Haas does mean it is any better than something built on an old hand operated machine. The quality comes from the hand finish work. If you look to see what the Bits machine on CNC you will find most items look very rough. Hours of filing and hand work still goes into each gun. Tghe steels have improved over years past but to be honest by the 1920's steel was as good as it will ever need to for a gun. Personally I find the between the wars guns to be about perfect but that is only my opinion. Someone will be along shortly to tell me I'm all wet.