Ran the same short trips and my analysis showed fuel dilution too, trust the severe schedule.

So when you say the first 80 were "learning how to fold signatures without tearing paper," was it the folding itself that was the hard part or lining up the grain so the spine didn't fight you? I'm at like 30 bindings and still tear one every few sessions, so I'm wondering if that ever actually stops or you just get better at hiding it.

Heard a guy on a podcast say that too and I still double check my math.