Finished epoxing and nailing on seat back (coaming) and seat supports onto frames. I decided to try some silicon bronze nails to see if it would speed up construction. Was a little faster. Still had to pre drill 20X20mm kahikatea to stop it splitting. Turned out to be a two person exercise and a bit messy. Any way got it all done tonight. Will pre-coat frames with two coats of epoxy sometime soon as per West System guidelines.