Highest I have binned were 21% that was in 2017. Have put many in the 16 -18 range through the years. Never have used heat, only air and stirrator. Come out in spring/summer at 13 - 14. Like to have some 11 -12s to stir in but not always possible. In 2014 doing last fld in Dec one semi load was 26, they went to elevator. I can tell you at 26 don't let the pile over the bubbleup auger get very high. Dump as soon as it gets covered. Also that day 2 jds [ neighbors ] were helping and my AFX was leaving them in what little dust there was.