Last month took the coamings off my Commander since one is split about half-way the length of the board. Last owner sunk a big lag bolt through the end into the deck but even that gave way over time.

Since the coaming is weight bearing for the winches I want to repair it correctly. Advise is welcome. Think my options are as follows;

1. sink wood biscuits on either side of the split. Then hold the split open as far as I dare and slather wood glue into the split and also glue the biscuits into their slots and clamp shut until dry.
2. finish ripping the coaming so I have 2 pieces and repeat as above.

Pictures are here. Thanks in advance.

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