RADAR in 42
 

I realize that RADAR in 1942 was not exactly, dare I say, realistic but I'm hearing that the early war destroyers seem to be more aggressive than the 43 - 44 war I'm playing. Since I can't stand getting all those RADAR contacts with just SD and I want to see the difference in escort capibilities, is there either a fix for the SD or is their a way to implement SJ in those 42 boats? Thanks...