For those you have started wondering, did he tell you anything like this? The general rule with holes is that it is better to do the inside first, and then put the outside around it.
This one doesn't have any hammers. But if I could afford to go back to the heirs of George Gibbs and say "Make me another, please," they would do it exactly the same way a hundred and twenty years later. For nothing inline gives you a safer or more durable gun, or a faster lock time. Is there something else?