For 13N's, 18X has been added to the Crossflow board. This means that every VML, Officers will Crossflow to 18X. This is a huge opportunity because an application is not needed for the November board. No AF 215, but a PCSM of 60 is needed and a current certified Flight Class Physical. Also, your TCSFD must line up.
I'm not aware of how Crossflow is offered to non-13N's, but I would think this opportunity would be available elsewhere as well. A PCSM of 60 is very competitive if you do not have a PPL or hours. In comparison to the November board, a PCSM of 10 is the minimum requirement.