I had all my weight on the shaft, ankle and left hand with right hand on coaming. When I rose to lay atop the deck, shaft snapped in middle where the shaft is plastic not aluminum.
I use USK videos. I watched BRACES before the water session but re entry info is on CAPSIZE RECOVERIES/\. H sez do not place pressure on shaft.
Diver's belt rigging from Seattle Fabrics appears solid in the Solstice layup with #10 screws, nylocks.
Aquabound's paddle has a plastic joining insert for the two shaft halves. Looks repairable with a dowel.