That's why when I built Eddie's engine with him, one of us would torque the rod or main, then the other would go right behind and double check...
By the time we were done, each nut and bolt had been checked 6 times at least (Three passes each) and there would be no question that we didn't get one....
I did similar on my 440 over the weekend. Checked it 3 times, the 2nd and 3rd I got the idea to mark each nut with a different color paint marker just to check myself