Commander #155 'Mephisto Cat'

[ebb]

Like the wrinkle of your driving the allthread in with the driver.
Should be locked in there til kingdom come.
I believe it may be better than what 338 got which were two 6" long 1/4" bronze rods in each of the corners. Drift pins!

I'll wager there isn't a single Commander or Ariel that doesn't have this splitting problem coming out of the knotches.

The rod may be all that is needed - yet the coamings get a lot of bending moments on them - not from sitting against them so much, but sitting on them, and sometimes standing on them.
The aft end might also have a small corner block added on the deck at the end - with it screwed into the coaming and the deck, Something to make absolutely sure the top can't be moved on these 'open ends'.