Would like to use a press, however, I am apparently in an anti-melliferous area. In four seasons I have lost 34 of 35 total colonies, only three of which ever even glimpsed their first winter. My problem? A super-short (three months) season and the rains and cool weather come with the major nectar flow.
Next season, I have a spot picked 20 miles away where the weather patterns are just different enough.
That said, I used to work commercially in Washington. My boss, at the time, rented time on another beekeeper's extraction line. Usually took us about four half-days to extract near 100 barrels using Maxant centrifuges. The old comb was crushed and strained and used to fill quart jar barter vessels. Centrifuges are faster and less labor intensive, but lose a magic something on the palette. Have only seen video of a proper press operation. It appeared more labor intensive than either centrifuge or gravity-strain (crushed) but much faster than the latter.