This really has nothing to do with your question but I'm curious what crew you have been running with. I was on Sandl's crew on the harvest of 1995 and really had a good time. Get in touch with me sometime on here and we could swap stories. Hey you never know maybe we've met before.
If you are looking for electric sieve and chafer adjustment, CAT's new lEXION range is just the business. They have electrically adjustable sieves and the on-board computer will even memorize the settings for different crops or fields.
We had a JD 9500 and a 9610 that we traded in last year for 2 9750 STS combines. We find that the grain is cleaner now and there is more in the bin rather the field.