Lift disc harrows

Have any of you (listers) used the new harrows from Everything Attachments? I am considering purchasing a set to harrow some rocky, heavy clay soil. I can rip it first if necessary with my box blade, but would rather harrow it first, pick the bigger rocks out of it and then scrape it. This is a rather large project and I am looking for the best methodology to accomplish my task. I have watched the online videos about these harrows and they look impressive, but I am also looking at Landpride as well as a few other brands. Also, if any of you have a good set of harrows, whatever brand that you have used I would appreciate that feedback as well. I am considering a set in the 7' width range. I have R4's on my MX5100. I need a set that it can handle on hills.

I have one of their newer heavy extreme harrows. It is the 24-20 and pull it with a mx5000dt with r4 tires. It is definitely well made and does in one pass that would take 3 passes with my old leinbach 245. I am very happy with it and the easy angle adjustment is the way to go.

Thanks for the feedback, what width is the cut on yours?

I have the rear set at about 8 1/2'. It could wider but I trailer it a good bit.

Thanks again, I just wanted to insure that whatever I get can be easily handled by the MX and extend beyond the wheel widths. I sent an email to EA to get the actual weights of the actual units. Landpride and some of the others have that on their websites.