Hmmm... My NDS tables show design values for compression parallel to the grain generally in the 350 - 900 psi range. For my species, Ponderosa Pine, the allowable compression parallel to the grain is 700psi for #1 posts, and 325psi for #2 post, which will place me closer to allowable limits if I use a 4" x 6" brace. (364 psi)

Am I still missing something here?