Spruce Spar Repair

[Brion Toss]

Hello,
And oh dear. Rot is almost entirely preventable, and remarkably fast-traveling in spars, once it gets started. Plan on replacing the entire base and then some, just on the (likely) chance that spores have already migrated to adjacent areas. And be braced, once you get the mast open, to find other soft spots, further uphill.
While the mast is out, aside from an excruciatingly thorough survey, plan on seating all fasteners in epoxy.
Fair leads,
Brion Toss