Just asking, how would the economics of running a 2nd modern combine would compare to the loss of 3.3%  or 4.4% of bean moisture.

I assume one would have to factor in having 2nd operator. Probably 2nd grain cart unless you always operate in the same field, which may not be practical. 

If it takes 2 trucks to service 1 combine, I assume 4 trucks to service 2 combines.

Maybe I'm not seeing all the numbers correctly...but I'm sure one can't factor all their bean crop as being below 13% on 1000 acres in most normal harvest situations unless something has really gone wrong. Maybe 1/2 or less? So, 1000A x 70 bu/A (?) = 70,000 bu (I got Coup on the other line to help me with equation presentation here...). Maybe 40% below 13%? So, 70,000 x 40% = 28,000 bu. x 4.4% (9% moisture) = 1232 bu. loss. Would only be 924 bu loss at 10% moisture on 28,000 bu.

1232 bu loss (9%) x $12 (fall '24) = $14784 moisture loss / 1000 A = $14.78/A. Did I mess up somewhere?

Can you operate a combine for $15/A? I didn't include head shattering. To me, that's really subjective & dependant on the bean variety, Ambient air conditions, combine header type, and operator. Header loss might not be significantly different at 10% vs 14%. Yes, there is also machine loss (out the back), but that may actually be higher with higher moisture?

Am I all wrong?