I worked for a harvest crew last summer and ran a 9650STS with straw spreaders. A 9750STS has a little more power but as far as I know, can only be ordered with a chopper, no spreaders. A chopper takes 80 hp to run, therefore you essentially have a 9650STS with spreaders. We found that the spreaders did just as good of a job as the chopper for less money. The 9650STS is an "AWESOME" machine!