Moving the ridge defeats part of the purpose of ridge till in that it provides a stable, firm seed bed.  In the 35 years I've been around our farm we've gone from conventional till, to ridge till, no-till, full tillage, and back to ridge till because for us it works the best.  We run a root slicer/stumper after harvest/before planting to remove the old corn root ball and plant right on top of the old row.