Are you sure the problem lies only with the lower joists?
I live in dryrot and termite heaven, usually the problems (at least around here) is a multiple thing.
House foundation settleing, sills seperating from the floor level, etc.
Have you poked around and made sure there aren't any other problems causing this?
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'75 Cuddy with '00 Johnson Ocean Pro 150 horse
Benny
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