I'm currently running a Case 1240 15/30 split row planter. When planting beans, occasionally I have problems with the reverse concave closing discs flipping soil right out of the seed trench on my row units that follow directly behind the planter and tractor tracks. I've spent a lot of time experimenting with different spring down pressures (on the closing discs) and haven't had much success light or heavy. Its only a real problem in the heavier ground, think black heavy Red River gumbo. The same type of soil conditions that give the JD pinch closing wheels a hard time getting the seed trench to close. Are there any other IH planter guys out there that have experienced this and have a solution? I'm considering trying a single spike closing disc on each unit. This years planting conditions are going to be a challenge, next to nothing for tillage got done in the fall last year in our part of Manitoba, and I've little experience of planting into zero till.