I've heard mixed reviews on the implications of multiple designators, but ultimately it broadens your selectability. I am 1835/1815, and this will be my fourth board, third with CW as secondary. The thing is, CW is a much smaller community, so you truly would need to be qualified, and are likely competing with CWT/CTT types who may be current drilling reservists E6/E7's, I am ignorant to what type of civilians work in ELINT/SIGINT, that would be favorable viewed by the board as my applications are primarily centered around intel.