[MindBender26]

re: 75 pounds out of place in readof A/C.

Yes it could, because W/B can bevery critical and where you are describing it placed would be at the end of the "movement arm" (think "lever")

Too much weight forward = A/C never gets off ground. Too much weight aft = uncontoled climb = stall, spin, crahh, burn.

[TinkersDam]

Right. Too much weight aft can cause just what happened. A sharp climb, full stall, a quick roll or two, even a roll to fully inverted.

Trouble is there is supposed to be a margin of error and there are supposed to be weight and balance calculations.