EMCON Levels (new House rule?)

I have been having a problem lately with the sensor system set up in the books. I posted a couple of questions about it a few days ago and got good clarification of it from Imagus.

Though clarified by Imagus, I still have a problem with the sensor rules. I think it is too vague when it comes to different emission levels (or EMCONS) from two ships. Always a fan of Naval type games and emission control, I felt that it plays into this game as well. So I put together the following PDF page with a chart of TN modifiers based on ship emissions.

I would love some input from other players - let me know if you see any holes in it, or if it is redundant, or if it was needed all along.

If any others have put together an EMCON modifier table, I would like to have their input.

I also think ship EMCON levels would play a big part in how well they can detect a cloaked ship. Wouldn't EMCON modifiers also apply to cloaked ship TN's? I think so...

Anyway, would love some input...