I used a green cut Red Pine for a barn that I raised in 2004, which came off the property adjacent to the job site. I bought two trees for $10 each. After the raising I stored the pole undercover for 3 years and tried using it again. It was still strong, but it started to bow when under the load of a 34ftx 18ft sawn pine end-wall bent. I was able to brace it, but I could definitely tell the difference between "green" and "seasoned"....seeing as the endwall bent on the previous frame was 32ft x 20ft hand hewn oak, and significantly heavier.
Since then I try to use recently cut or green Red pines for the raisings, since there is a long enough period between them that warrants using a newer pole and spending the $10-$15 to replace it.
So, I got more "flex" out of the seasoned pine pole than the green one.
Rooster