The planter works great.  I still want to add two things, when time permits.  There is a part that can be added to each side of the coulters, it looks like a smooth 2 inch wide tire or something right on the side of the coulter, which tends to limit the depth of planting.  I forgot what these are called, so if someone knows the name and part number, please post it up.  Using these should help control the planting depth a bit closer.  Also, I want to do a liquid fertilizer applicator with squeeze pump, which will flow out on top of the soil a couple inches beside the rows, as starter.  I will simply mix up miracle grow in the tank when I use it.