Sonobuoys vs MAD sensor
I just stared playing the game this week and just finished the ASW tutorial mission where it tasks you to find a soviet submarine with a P-3 at the end of the tutorial. I spend awhile dropping sonobuoys around the 10nm estimated location but I had no luck until I lowered altitude and used the MAD and detected the submarine very quickly despite the P-3 being further away from the submarine than a sonobuoy I dropped earlier (that was still functional). The submarine was at periscope depth for reference.
So, in your experiences, have you found that the MAD or sonobuoys are better at finding subs?