I would think that maybe your outfeed table is set too low or not totally flat. I think first you need to check the parraellism of both your tables with a long straight edge. When the infeed table is at O(highest postion,no cutting). You need to leave the long straight edge on the table and check that both tables are perfectly flat. Also while doing this, that the cutter blades when you rotate the cutter head(very carefully) just barely tick the straight edge with the top of the blades(all the blades). If all do not touch you need to adjust the blades so that they are all the same height. Maybe this will help. David