wwe have tr98 we had trouble with canola going over sieves 150kg_ha. we harvest at 7% moisture to cure problem increased rotor speed from 700rpm to 1500rpm removed every concave wire including extentions ,concave wide open ,bottom sieve wide open, canola sieve in top,cover plate on beater grate,21' swaths at 5mph 8ton_hr 40kg_ha on ground .its very dry when we harvest and it smashes all the straw up and tends to over load the sieves . hope this helps.