Yes I have. Depending in the size of the garden and how deep you push in the tines, it kills the back. I had to use one down the isles and weed as a kid. Hated it!
About those worms, dont tell but I stop by the local fish bait store and drop them in every season, How many worms do you see in your ground while tilling?
Oh and after I put in the worms, darn birds seem to know and camp out in my garden for the next week. The Garden battles never end :jedi:
I dont till but once a year. In the fall after frost bacteria is dormant at that time.Manure put down then as well.