hi
we have an inland course thats on the side of a hill and they have to do the and its about same times of year as yours, we get told it for drainge and to help the greens through the winter. i play links most of time and there greens seem to take the elements better. the oldest course in the world, musselburgh is played on the same 9 greens year in year out. st andrews is one of the most played courses in the world with greens the size of football pitches and i dont know of them plugging the greens.
bill