A conventional disk harrow would be better, it will ride up and over the stumps.
I would love to hear how your planting turns out. For tillage I use a disc harrow. I did that on a 1/2 acre plot, then ran over it with a pulverizer to smooth it out, and planted clover. The clover came up well on about 3/4 of the plot--at least it looked that way-- but then I neglected it and the weeds took over. Obviously I don't know what to do to maintain the clover after it comes up and gets fairly well established--or maybe the problem was that it just looked pretty good but really wasn't well established.
I plan to grade 30 acres with it later. Also has stumps below grade. I'm giving that area time to rot though, like atleast a few years.
Not a reasonble expectaton for a tractor, even a large, heavy tractor. For thirty acres hire a bulldozer and operator.
So you think the ETA xtreme disk is the way to go with a cultipacker.
Forgot to mention, i have clay soil.
So what implements would you use to prep soil if there were NO stumps? Chisel plow and cultivator?