is it the mod or have I just been lucky before?

[She-Wolf]

hello y'all. The year is 1941 ( christmas) and I am in the Asiatic fleet in charge of a diddy little boat - SS-18. I have left TMO for now ( though will be back as I now understand that my habit of repeatedly saving to the same name was what was causing gremlins) and am trying out RSRDC and RFB, and so far so good - BUT, I have noticed two things that are different.

The first is that I cannot get close enough to a convoy to get a big ship in range ( 3500 yards?) because the escorts pick me up even when I am way out, and the second is that Auxiliary subchasers suddenly seem to have bigger ears than I found to be the case in TMO.

In TMO I would often go up to Yaizu ( plenty of deep water close by) because I could be sure of getting a good haul of merchantmen in that bay, and had a reasonable chance of evading the warships - so I tried it in RFB/RSRDC after I had been set free from my patrol duties, tootled in under cover of darkness, and sat about 5 miles off Yaizu, waiting for dawn. I knew of, and was keeping an eye on a subchaser some two miles plus away, but felt I was safe as the engines were off, I was submerged and it was pitch black. Yet, somehow, he knew I was there - made a beeline for me, and even though I went below a thermal layer and to silent running, I could not shake him off. How did he know I was even there? IN TMO I have had subchasers looking for me round Wake Island and not knowing they had passed within feet, yet this guy seemed to have me pinpointed from over two miles away... I dinna understand it!! ( fun though).