Nationals are complete for 2016.
Several sections did well in Mixed, notably Eastern, Mid-Atlantic, Northern Cal, Southern, Southern Cal, and Texas. But Southern was clear and away the best winning four of the nine titles and nearly doubling up the points on second place Northern Cal.
Couple that with Southern running away with 18+ and doing well in 40+ and 55+, and it appears Southern can take home being my unofficial "Section of the Year". Southern finished a close second to Southern Cal last year but takes it all this year.