Yes, they'll usually come from 2.5 - 3" unless you get a pounding rain on them and some crusting. The problem is getting an 1890 to hold that depth.  (Decreasing ground speed helps, unless you pile on a lot of ballast and have our UniForce system.)

With soybeans, it's not good enough to be in slightly moist soil.  They need to be embedded in thoroughly wet soil.  One of the best farmers I know says that he wants soybeans 1" below the moisture line when it's starting to get dry.