I'm not sure about the Lamco but I use my LehmanH for planting rye grass. Just had to adjust the spinner plate up to accommodate the smaller seed size.
I contacted the lamco office (my feeder) about this issue they said sure. Here is what they told me. "Yes you can. Does your spinner plate have wings that fold down when the feeder is turned on or is it a round cupped plate? "If it's the cup plate it will not throw as far"