Looking at 30' Deere drapers.  So far model year 2014-2020.  Have found a few that have single knife drive vs dual knife.  Local consensus is that you want a dual knife drive.  Cuts better, less vibration, easier to replace a 15' cutter bar vs a 30' if you break one, etc.

But I'm a smaller operation.  350-400 acres of beans per year.  Normally pretty high yielding, tough green stems in a lot of cases.

Thinking with a single knife drive that a couple less things to go wrong.  One less wobble box, gearcase, driveshaft etc.  No different/odd spare parts for the middle section like on a dual knife drive.  Had a single knife drive on the auger head forever and worked just fine.

Appears some discounts to be had on the single vs dual knife and wondering if you guys have any info or opinion on the matter.

Thanks.