When both fillets were fully cured I prepared them for fibreglass.
This is the port fillet at the stern. You can see numerous small surface imperfections which will need to be filled and faired.
The next step was to sand the fillets and apply fairing using fillet mix.
This is the port fillet after sanding and with fairing applied.
And this is the port fillet after final sanding.
Both fillets were now ready for fibreglass, and I was happy to have the worst remaining task behind me!