Honestly, I've spent most of my life not thinking about Greenhead flies. But working one summer in a boatyard here in Massachusetts put me wise to the facts
You cannot duck certain duties. There comes a time, as the days lengthen and winds slowly shift to south-westerlies, that you can no longer delay the inevitable.
Spinney knew that keeping a small boatyard working during the winter months is not easy.
My last stint doing bottom paint, wooding old varnish, was almost exactly twenty years prior.
Spinney's yard was no different than lots of yards on the mid-coast, and in most ways, Spinney was not too different than the run of yard owners.
Ask for advice; avoid the odor of pride.