Anybody still use these?  I see they are still on JD's website which surprised me a little.  We had one and it was our first air seeder back in the mid to late 90s.  Worked wonderful since we were conventional till at the time and seeding into mostly trash free soil.  We had to go to eastern MT to buy it and then trade it up in Tiber AB Canada when we went to a air hoe drill and no-till.  We actually widen it out a couple of feet which was easy.  Other then ours I've only ever seen one other 730.  If we ever went organic we would probably find another one.