I find it hard to get as clean a sample without blowing wheat out the back of our 7010 as comparedto our previous 88 series combine. Read on a post that someome talked of plugging a hole between the presieve and sieve with foam. Can't find the post back but wondering if anyone else has done this and how they did it. I also think that the rotor loss sensors don't accuratley monitor the rotor loss and they often show up as chaffer loss esp. when your beater is on slow speed.