Hi Rick,
You are speaking "sawyer" language...and folks aren't getting it. Correct my explanation if you see I missed something...
We bought a single stick from your neck of the woods...
This means Rick bought a log from a logger a while back. When a tree is felled the log is often called a "stick." The "stick" (log) is is cut up into "bolts," the bolts are then turned into "Cants."
It ended up 12x24" 40 feet long FOHC...
This means the "stick" yielded a "Cant" that was 12" deep by 24" wide, by 40 feet long, "free of heart center" (FOHC). I would imagine it was then cut into the appropriate shorter Cants and then into board stock.
...on the second attempt we dried it to 15%, that stick is in Texas.
I am assuming now that the board stock was then dried to 15% moisture content, as timbers are seldom treated this way for timber frame do to loss of material from internal pressures, and the fact that it is virtually impossible to dry to the core of stock larger the 150mm x 150mm (6"x6") and if achieved through "case hardening" the outer section the inner portion is out of balance with the rest of the timber...