Traded 9500 (with 9510 update and guts) with 6 row corn hean and 25 bean platform in on new 9560STS with 8 row and 30 ft table. Yields were same for the most part last fall running new machine. There is a big difference and we like it personally. Neighbor runs 9760 next door and we ran beans along side one another same 30ft platform. He can run about a 1 mph faster (more HP),but with the extra rocks we have we are fine running a little slower. In 200 bushel corn we slow up a little not much. loved the 9500, great machine....like going from a 4020 to a 4430 back in the days. My 2 cents