Double digging a second time?
My main vegetable garden was double dug about 25 years ago. For several years, I kept it in light, fluffy, never-tread- upon raised beds using the native soil plus every year's compost and mulch. It's pretty darn good soil even if I'd never double dug. (Thank you, geological forces). I found the raised beds drained a little too easily, that is why I did away with them. Oh, occasionally I plant on ridges or mounds, and celery in trenches, but mostly it is pretty flat.
Have you heard of anyone intentionally double digging a second time? I assume some minerals will have filtered downward so there could be advantage to bring them up again. On the other hand I really don't like to disturb the soil and break up the fungal communities, worms, etc. So I am certain I am not going to double dig again.
But have you ever double dug a second time? Can you think of a circumstance where it might seem appropriate?