BTW, I found all but one of my missing W&Bs. The one where the weight seems to "jump" forward is a reweighing from about 30 years ago. The weight and c.g move as though 111.5 lbs were added right about at the pilot's knees. That's a lot of "found" weight, and very far forward. Every W&B since then has been a calculation off of that one.
I don't think the 1990 reweighing was done precisely.
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