With a tiller on my 2210 I think you are better off ripping the soil first, either with a subsoiler or scarifiers on a box blade. As mentioned previously, the tiller will work better (in my experience) with the busted up soil. It also helps show hidden surprises, i.e. rocks. If you're going to be tilling for other people in unknown soil, I would make this a must.
I linked some pictures of an area I tilled last summer, prior to having it leveled off by a bulldozer. You could tell the difference in the area I ripped up prior to tilling. If you look you could see some big rocks that would have reeked havoc on the tiller.
Pictures by jim2210 - Photobucket
I linked some pictures of an area I tilled last summer, prior to having it leveled off by a bulldozer. You could tell the difference in the area I ripped up prior to tilling. If you look you could see some big rocks that would have reeked havoc on the tiller.
Pictures by jim2210 - Photobucket