The radar/sensor models work fine, they just aren't sophisticated enough to deal with the kinds of issues that come up with mast detection (masts are a LOT smaller than ship or aircraft...).
LWAMI 3.02 is currently available at
www.subguru.com .
LWAMI4, which is upgraded to the point of being an entirely new mod, will be available after it is completed and gone through a thorough testing period (I'm working on it daily... it represents over two months of work between Amizaur and myself on top of the work done for 3.02).
In terms of how I play, when I need to raise a mast I do, and then when I get my information, I lower it again. Like I said, being at PD depth is very dangerous, so whether the mast is up or not, you are at great risk being shallow. I just don't focus too much on the masts detectability, just all of the things I need to be doing other than be at 60ft staring at the ESM.
Cheers,
David