dj,
No offence taken by any means. If you have never operated a tiller it is just like any kind of soil engagement equipment. It takes a few passes to get the kind of results needed to plant. I don't know of any implement that will deliver the kind of results needed in just one pass, I'd sure like to see it if there is one. The KK is designed to till 6-8" deep. If the garden is plowed prior to tilling then you can achieve the desired results in one pass....I usually do two because I belive in giving people a little extra for their money and the ground is...well beautifully tilled.
If you ever watched a farmer unless they're doing no till they work the ground a few times before planting.....were talking acres now!