SoyGary,

After two years of running rebounders we took em off.   The first two years were very dry springs with timely rains after planting.  The third year was fit, but moist, and had the same problems you have posted, all my buddy's took theirs off this past year.   After this past spring im convinced few posters here know exactly what type of soils and climate you and I farm.   There won't be seed firmers on any of our planters now and down the road.   No doubt they must be pullin their wieght in other soils/climates.

Brian Schmidt

WC/SW Minnesota