: I will reglue it, and add a tad more backside bracing to the blade. I
: wouldn't build another one much differently, though. The shaft is strong
: enough--the insufficiently braced blade simply put too much concentrated
: pressure on one area. When making glass blades, some amount of wooden
: stiffener is necessary, or a hollow glass rib (like Werner and Swift use)
: for stiffness. Solid glass would be way too heavy to make stiff enough.

You should consider carbon fabric. Much stronger and lighter. You should be able to make a "hollow" tube similar to some of the things Vaclav (One Ocean Kayaks) does. I seem to remember him making deck fittings in a similar fashion.

Bill