Having trouble threshing hrsw and getting good sample. Getting whitecaps. Very little loss out back. I know it's too wet and shouldn't be going. But...... Currently at 800 rotor with no cover plates concave .3 750 fan chaffer is air foil bottom sieve 1/4" or so. All the threshing components are good. These are settings used in the past and has been good. Any suggestions would be helpful. Thanks in advance