It's easy to increase accuracy during hand recounts - use more counters . Bayesian statistics. The individual errors will be random around the true value and cancel each other out.
That was only true of certain types of desert sandstone and certain old shitty 1/4" bolts. The ASCA sure isn't doing anchor replacement at Indian Creek using drilled angles!
Hey kid - I wasn't asking about illegal fishing but about how many fish the "ancestors" you mention took from the river and how they did it "respectfully". You might be surprised!