It seems the hull sonar shares the same BB properties as the cylindrical after all.
Hmm, this makes any database solution amount to making the Kilo very deaf, but the same problem would exist.
Personally I think it is better to wait for an official fix, but I will try a couple of things.
Edit: Yes, I think this falls under the catagory of messing around with stuff for me rather than fixing it. Unless Amizaur can think of something, then I think this will have to wait for an official fix.
Oh well, DW rocks!